StatTrak™
Covert → knife or gloves · Items in the contract: 5About the craftCraft 3404283 · ways to build: 2StatTrak™ craft. Inputs and outcome are StatTrak: a normal item won't do here, and the outcome sells at the StatTrak price, which differs from the price of the normal item.A contract of five Covert. The outcome is a knife or gloves from the inputs' collection, and it has many outcomes: the chance of a particular item is therefore small, and what counts is the average over all outcomes.The Steam fee is included. You can sell the outcome a week after crafting.
How to build
Ways to build
2 ways: the best first, then from the most accessible. Click a tab and the numbers below are recalculated for that way.
!
100% of lots fit:на контракт не хватает: нужно 4 шт., годных ≈14≈ market listings are not enough for even one contract (by listings)
×1
StatTrak™ M4A1-S | Cyrex
Battle-Scarred
any lot
195.05 $
at 195.05
if this one runs out, you can take
StatTrak™ P90 | Asiimov (Well-Worn) — 206.06 $+11.00 $ per item · on the market 11 · buy0.3800–0.4500
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsf′ (normalized) 1.000000wear 0.4500–0.5000on the market 3 · good ≈ 3Lis-Skins: suitable 8 of 8 · from 174.17 $ (float 0.4607) · craft not before 01.11 · data 24.10 13:43 MSK
×4
StatTrak™ PP-Bizon | Judgement of Anubis
Field-Tested
any lot
502.83 $
at 125.71
if this one runs out, you can take
StatTrak™ M4A1-S | Chantico's Fire (Battle-Scarred) — 138.01 $+12.31 $ per item · on the market 8 · buy0.4500–0.9900
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsf′ (normalized) 0.760000wear 0.1500–0.3800on the market 14 · good ≈ 14Lis-Skins: suitable 35 of 35 · from 98.38 $ (float 0.2804) · craft not before 01.11 · data 24.10 13:43 MSK
Set · 5 pcs697.88 $
−316.23
(−45.3%)
!
The gain is understated:3 outcomes have no price, that is 6.0% of the chance
They have no price on Steam: they are above its cap. They count as zero in the calculation, so the profit shown is a lower bound, and noticeably so.
!
100% of lots fit:на контракт не хватает: нужно 2 шт., годных ≈3≈ market listings are not enough for even one contract (by listings)
×2
StatTrak™ M4A1-S | Cyrex
Battle-Scarred
any lot
390.11 $
at 195.05
if this one runs out, you can take
StatTrak™ P90 | Asiimov (Well-Worn) — 206.06 $+11.00 $ per item · on the market 11 · buy0.3800–0.4500
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsf′ (normalized) 1.000000wear 0.4500–0.5000on the market 3 · good ≈ 3Lis-Skins: suitable 8 of 8 · from 174.17 $ (float 0.4607) · craft not before 01.11 · data 24.10 13:43 MSK
×3
StatTrak™ PP-Bizon | Judgement of Anubis
Field-Tested
any lot
377.12 $
at 125.71
if this one runs out, you can take
StatTrak™ M4A1-S | Chantico's Fire (Battle-Scarred) — 138.01 $+12.31 $ per item · on the market 8 · buy0.4500–0.9900
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsf′ (normalized) 0.760000wear 0.1500–0.3800on the market 14 · good ≈ 14Lis-Skins: suitable 35 of 35 · from 98.38 $ (float 0.2804) · craft not before 01.11 · data 24.10 13:43 MSK
now 517.28 $ — cheaper than the month average 579.51 $sell now to a buy order: 448.86 $
(you get 390.31 $)) · buy orders: 879
sell on Market.CSGO: 441.84 $ to your card
cheapest lot 484.47 · lots 36price ignores the phase
on CSFloat: from 381.54 $listings: 70
on CS.Money: ~ 403.17 $
rarely sells: 2 a month — calculated at the buy order 497.17 $sell now to a buy order: 497.03 $
(you get 432.20 $)) · buy orders: 521
sell on Market.CSGO: 388.67 $ to your card
cheapest lot 426.17 · lots 15
on CSFloat: from 360.00 $listings: 23
on CS.Money: ~ 381.04 $
on Lis-Skins: from 371.21 $listings: 51
rarely sells: 9 a month — calculated at the buy order 326.25 $sell now to a buy order: 320.98 $
(you get 279.11 $)) · buy orders: 423
sell on Market.CSGO: 283.24 $ to your card
cheapest lot 310.58 · lots 10
on CSFloat: from 269.94 $listings: 14
on CS.Money: ~ 299.01 $
on Lis-Skins: from 292.73 $listings: 16
rarely sells: 1 a month — calculated at the buy order 170.10 $sell now to a buy order: 167.83 $
(you get 145.94 $)) · buy orders: 96not listed on Market.CSGO right nowCSFloat: 1 listings, too few, no price
Steam★ StatTrak™ Bayonet | Rust Coat (Battle-Scarred)net 149.96 $The Chroma 3 Collectionsells 4 a weekmonth average 172.46 $, sold 11 — it costs more now, the calculation uses the averagesell now to a buy order: 149.96 $
(you get 130.40 $)) · buy orders: 171
sell on Market.CSGO: 130.04 $ to your card
cheapest lot 142.59 · lots 18
on CSFloat: from 124.85 $listings: 11
on CS.Money: ~ 127.12 $
on Lis-Skins: from 121.07 $listings: 51
Steam★ StatTrak™ Bayonet | Ultraviolet (Battle-Scarred)net 138.63 $The Chroma 3 Collectionsells 3 a weekrarely sells: 4 a month — calculated at the current 159.42 $, buy orders and sales are not lowerno buy orders
sell on Market.CSGO: 166.54 $ to your card
cheapest lot 182.61 · lots 8CSFloat: 2 listings, too few, no price
on CS.Money: ~ 142.31 $
on Lis-Skins: from 167.74 $listings: 4
now 419.83 $ — cheaper than the month average 454.43 $sell now to a buy order: 358.13 $
(you get 311.41 $)) · buy orders: 568
sell on Market.CSGO: 302.51 $ to your card
cheapest lot 331.69 · lots 32price ignores the phase
on CSFloat: from 288.00 $listings: 77
on CS.Money: ~ 301.27 $
rarely sells: 2 a month — calculated at the buy order 367.61 $no buy orders
sell on Market.CSGO: 275.34 $ to your card
cheapest lot 301.91 · lots 18
on CSFloat: from 264.99 $listings: 28
on CS.Money: ~ 287.77 $
on Lis-Skins: from 274.93 $listings: 44
rarely sells: 9 a month — calculated at the buy order 234.65 $sell now to a buy order: 233.17 $
(you get 202.76 $)) · buy orders: 231
sell on Market.CSGO: 228.86 $ to your card
cheapest lot 250.94 · lots 14
on CSFloat: from 209.64 $listings: 10
on CS.Money: ~ 220.22 $
on Lis-Skins: from 208.88 $listings: 28
Steam★ StatTrak™ Flip Knife | Damascus Steel (Well-Worn)net 138.16 $The Chroma 3 Collectionno price on Steam, listing on CSFloat from 140.98 $listings 3 · you get 138.16 $ (2.0% fee from the price)ignoring float and patternsell now to a buy order: 120.00 $
(you get 104.35 $)) · buy orders: 86
sell on Market.CSGO: 153.97 $ to your card
cheapest lot 168.82 · lots 3
on CSFloat: from 140.98 $listings: 3
on CS.Money: ~ 129.91 $Lis-Skins: 2 listings, too few, no price
rarely sells: 6 a month — calculated at the buy order 138.56 $sell now to a buy order: 138.53 $
(you get 120.46 $)) · buy orders: 175
sell on Market.CSGO: 112.33 $ to your card
cheapest lot 123.17 · lots 8
on CSFloat: from 108.00 $listings: 12
on CS.Money: ~ 108.39 $
on Lis-Skins: from 108.49 $listings: 26
Steam★ StatTrak™ Flip Knife | Ultraviolet (Battle-Scarred)net 103.48 $The Chroma 3 Collectionno price on Steam, listing on Market.CSGO from 108.92 $listings 3 · you get 103.48 $ (5.0% fee from the price)ignoring float and patternBS costs more than FT: 186.05 $ versus 108.92 $ — calculated at the price of FTsell now to a buy order: 144.28 $
(you get 125.46 $)) · buy orders: 98
sell on Market.CSGO: 169.67 $ to your card
cheapest lot 186.05 · lots 3CSFloat: 2 listings, too few, no price
on CS.Money: ~ 123.63 $Lis-Skins: 2 listings, too few, no price
Steam★ StatTrak™ Gut Knife | Doppler (Factory New)net 133.95 $The Chroma 3 Collectionsells 8 a weeknow 154.04 $ — cheaper than the month average 176.18 $sell now to a buy order: 162.23 $
(you get 141.07 $)) · buy orders: 684
sell on Market.CSGO: 142.32 $ to your card
cheapest lot 156.05 · lots 34price ignores the phase
on CSFloat: from 130.00 $listings: 49
on CS.Money: ~ 139.78 $
rarely sells: 5 a month — calculated at the buy order 143.13 $sell now to a buy order: 140.42 $
(you get 122.10 $)) · buy orders: 204
sell on Market.CSGO: 134.69 $ to your card
cheapest lot 147.68 · lots 20
on CSFloat: from 125.79 $listings: 24
on CS.Money: ~ 132.81 $
on Lis-Skins: from 125.80 $listings: 67
rarely sells: 6 a month — calculated at the buy order 123.35 $sell now to a buy order: 121.73 $
(you get 105.86 $)) · buy orders: 221
sell on Market.CSGO: 107.63 $ to your card
cheapest lot 118.02 · lots 20
on CSFloat: from 110.00 $listings: 12
on CS.Money: ~ 109.93 $
on Lis-Skins: from 105.41 $listings: 45
Steam★ StatTrak™ Gut Knife | Damascus Steel (Well-Worn)The Chroma 3 Collectionno buy ordersMarket.CSGO: 1 listings, too few, no priceCSFloat: 2 listings, too few, no priceLis-Skins: 1 listings, too few, no price
now 61.60 $ — cheaper than the month average 64.34 $no buy orders
sell on Market.CSGO: 62.99 $ to your card
cheapest lot 69.07 · lots 11
on CSFloat: from 60.00 $listings: 8
on Lis-Skins: from 51.50 $listings: 32
rarely sells: 2 a month — calculated at the buy order 58.19 $sell now to a buy order: 57.42 $
(you get 49.93 $)) · buy orders: 186
sell on Market.CSGO: 73.64 $ to your card
cheapest lot 80.75 · lots 4
on Lis-Skins: from 77.05 $listings: 3
rarely sells: 2 a month — calculated at the buy order 1 346.92 $no buy orders
sell on Market.CSGO: 1 155.63 $ to your card
cheapest lot 1 267.13 · lots 23price ignores the phase
on CSFloat: from 1 086.25 $listings: 140
on CS.Money: ~ 1 294.83 $
rarely sells: 2 a month — calculated at the buy order 1 129.17 $sell now to a buy order: 1 114.39 $
(you get 969.04 $)) · buy orders: 1095
sell on Market.CSGO: 1 132.98 $ to your card
cheapest lot 1 242.30 · lots 17
on CSFloat: from 1 061.31 $listings: 34
on CS.Money: ~ 1 145.31 $
on Lis-Skins: from 1 126.06 $listings: 37
rarely sells: 0 a month — calculated at the buy order 998.24 $sell now to a buy order: 1 031.40 $
(you get 896.87 $)) · buy orders: 1042
sell on Market.CSGO: 921.82 $ to your card
cheapest lot 1 010.77 · lots 11
on CSFloat: from 840.00 $listings: 18
on CS.Money: ~ 934.79 $
on Lis-Skins: from 934.46 $listings: 37
Steam★ StatTrak™ Karambit | Damascus Steel (Well-Worn)The Chroma 3 Collectionno buy ordersnot listed on Market.CSGO right nowCSFloat: 2 listings, too few, no priceLis-Skins: 1 listings, too few, no price
rarely sells: 4 a month — calculated at the buy order 527.88 $sell now to a buy order: 428.92 $
(you get 372.98 $)) · buy orders: 254
sell on Market.CSGO: 470.30 $ to your card
cheapest lot 515.68 · lots 12
on CSFloat: from 403.45 $listings: 15
on CS.Money: ~ 472.01 $
on Lis-Skins: from 451.34 $listings: 33
BS costs more than WW: 556.65 $ versus 365.84 $ — calculated at the price of WWrarely sells: 0 a month — calculated at the buy order 556.65 $sell now to a buy order: 549.31 $
(you get 477.66 $)) · buy orders: 212Market.CSGO: 2 listings, too few, no price
on CSFloat: from 437.20 $listings: 4
on CS.Money: ~ 438.25 $
on Lis-Skins: from 450.06 $listings: 11
Steam★ StatTrak™ M9 Bayonet | Doppler (Factory New)net 185.29 $The Chroma 3 Collectionsells 2 a weekrarely sells: 9 a month — calculated at the current 213.09 $, buy orders and sales are not lowersell now to a buy order: 1 080.92 $
(you get 939.93 $)) · buy orders: 1488Market.CSGO: price does not match Steam and is not shownCSFloat: price does not match Steam and is not shownCS.Money: price does not match Steam and is not shown
rarely sells: 3 a month — calculated at the buy order 731.67 $sell now to a buy order: 733.96 $
(you get 638.23 $)) · buy orders: 589
sell on Market.CSGO: 702.45 $ to your card
cheapest lot 770.23 · lots 13
on CSFloat: from 666.00 $listings: 22
on CS.Money: ~ 737.53 $
on Lis-Skins: from 683.74 $listings: 39
rarely sells: 3 a month — calculated at the buy order 679.74 $sell now to a buy order: 670.79 $
(you get 583.30 $)) · buy orders: 608
sell on Market.CSGO: 620.87 $ to your card
cheapest lot 680.78 · lots 14
on CSFloat: from 571.36 $listings: 21
on CS.Money: ~ 643.84 $
on Lis-Skins: from 590.46 $listings: 34
Steam★ StatTrak™ M9 Bayonet | Damascus Steel (Well-Worn)The Chroma 3 Collectionsell now to a buy order: 415.33 $
(you get 361.16 $)) · buy orders: 65not listed on Market.CSGO right nowLis-Skins: 1 listings, too few, no price
BS costs more than WW: 332.16 $ versus 270.54 $ — calculated at the price of WWrarely sells: 5 a month — calculated at the buy order 332.16 $no buy orders
sell on Market.CSGO: 322.87 $ to your card
cheapest lot 354.03 · lots 10
on CSFloat: from 280.00 $listings: 13
on CS.Money: ~ 314.73 $
on Lis-Skins: from 305.64 $listings: 38
rarely sells: 0 a month — calculated at the buy order 354.48 $sell now to a buy order: 350.60 $
(you get 304.87 $)) · buy orders: 69
sell on Market.CSGO: 310.45 $ to your card
cheapest lot 340.40 · lots 9
on CSFloat: from 305.00 $listings: 5
on CS.Money: ~ 309.07 $
on Lis-Skins: from 320.31 $listings: 13
Steam★ StatTrak™ Butterfly Knife | Fade (Factory New)net 1 905.19 $no price on Steam, listing on CSFloat from 1 944.07 $listings 44 · you get 1 905.19 $ (2.0% fee from the price)ignoring float and patternsell now to a buy order: 1 999.69 $
(you get 1 738.86 $)) · buy orders: 882
sell on Market.CSGO: 2 124.88 $ to your card
cheapest lot 2 329.91 · lots 11
on CSFloat: from 1 944.07 $listings: 44
on CS.Money: ~ 2 106.02 $
on Lis-Skins: from 2 081.32 $listings: 33
rarely sells: 0 a month — calculated at the buy order 1 411.67 $sell now to a buy order: 1 393.07 $
(you get 1 211.36 $)) · buy orders: 323
sell on Market.CSGO: 1 472.87 $ to your card
cheapest lot 1 614.99 · lots 5
on CSFloat: from 1 423.99 $listings: 4
on CS.Money: ~ 1 172.48 $
on Lis-Skins: from 1 354.60 $listings: 8
Steam★ StatTrak™ Butterfly Knife | Blue Steel (Battle-Scarred)net 698.60 $no price on Steam, listing on CSFloat from 712.86 $listings 10 · you get 698.60 $ (2.0% fee from the price)ignoring float and patternsell now to a buy order: 696.52 $
(you get 605.67 $)) · buy orders: 183Market.CSGO: 2 listings, too few, no price
on CSFloat: from 712.86 $listings: 10
on Lis-Skins: from 741.49 $listings: 7
BS costs more than FT: 675.29 $ versus 648.66 $ — calculated at the price of FTrarely sells: 3 a month — calculated at the buy order 675.29 $sell now to a buy order: 674.38 $
(you get 586.42 $)) · buy orders: 244
sell on Market.CSGO: 534.65 $ to your card
cheapest lot 586.24 · lots 10
on CSFloat: from 490.00 $listings: 6
on CS.Money: ~ 579.91 $
on Lis-Skins: from 523.88 $listings: 14
Steam★ StatTrak™ Butterfly Knife | Case Hardened (Battle-Scarred)net 705.91 $
by lot · 0 sales per day
BS costs more than FT: 903.21 $ versus 811.79 $ — calculated at the price of FTrarely sells: 1 a month — calculated at the current 903.21 $, buy orders and sales are not lowerno buy orders
sell on Market.CSGO: 742.72 $ to your card
cheapest lot 814.39 · lots 4
on CSFloat: from 763.00 $listings: 13
on Lis-Skins: from 831.67 $listings: 7
rarely sells: 0 a month — calculated at the buy order 406.36 $sell now to a buy order: 401.00 $
(you get 348.70 $)) · buy orders: 351Market.CSGO: 1 listings, too few, no priceCSFloat: 1 listings, too few, no price
on Lis-Skins: from 464.24 $listings: 8
rarely sells: 1 a month — calculated at the buy order 401.41 $sell now to a buy order: 399.13 $
(you get 347.07 $)) · buy orders: 133Market.CSGO: 1 listings, too few, no priceCSFloat: 2 listings, too few, no price
on CS.Money: ~ 455.01 $
on Lis-Skins: from 427.70 $listings: 3
Steam★ StatTrak™ Butterfly Knife | Crimson Web (Battle-Scarred)net 614.99 $no price on Steam, listing on CSFloat from 627.54 $listings 5 · you get 614.99 $ (2.0% fee from the price)ignoring float and patternBS costs more than WW: 634.58 $ versus 627.54 $ — calculated at the price of WWsell now to a buy order: 661.41 $
(you get 575.14 $)) · buy orders: 176
sell on Market.CSGO: 822.31 $ to your card
cheapest lot 901.66 · lots 5
on CSFloat: from 634.58 $listings: 5
on Lis-Skins: from 610.41 $listings: 11
Steam★ StatTrak™ Butterfly Knife | Night (Battle-Scarred)net 414.24 $
by lot · 0 sales per day
rarely sells: 1 a month — calculated at the buy order 476.38 $sell now to a buy order: 470.23 $
(you get 408.90 $)) · buy orders: 140
sell on Market.CSGO: 506.78 $ to your card
cheapest lot 555.67 · lots 4
on CSFloat: from 470.00 $listings: 5
on CS.Money: ~ 483.60 $
on Lis-Skins: from 509.52 $listings: 10
Steam★ StatTrak™ Butterfly Knife | Scorched (Battle-Scarred)net 412.32 $no price on Steam, listing on CSFloat from 420.73 $listings 3 · you get 412.32 $ (2.0% fee from the price)ignoring float and patternsell now to a buy order: 432.08 $
(you get 375.72 $)) · buy orders: 160
sell on Market.CSGO: 573.50 $ to your card
cheapest lot 628.84 · lots 3
on CSFloat: from 420.73 $listings: 3
on CS.Money: ~ 456.88 $
on Lis-Skins: from 462.45 $listings: 9
BS costs more than FT: 600.48 $ versus 520.12 $ — calculated at the price of FTrarely sells: 0 a month — calculated at the buy order 600.48 $no buy ordersMarket.CSGO: 2 listings, too few, no price
on CSFloat: from 408.00 $listings: 3
on Lis-Skins: from 431.30 $listings: 13
rarely sells: 2 a month — calculated at the buy order 411.49 $sell now to a buy order: 407.09 $
(you get 353.99 $)) · buy orders: 225
sell on Market.CSGO: 475.76 $ to your card
cheapest lot 521.67 · lots 5CSFloat: 2 listings, too few, no price
on CS.Money: ~ 454.46 $
on Lis-Skins: from 444.74 $listings: 14
Steam★ StatTrak™ Butterfly Knifenet 1 017.67 $no price on Steam, listing on CSFloat from 1 038.44 $listings 16 · you get 1 017.67 $ (2.0% fee from the price)ignoring float and patternsell now to a buy order: 1 398.62 $
(you get 1 216.19 $)) · buy orders: 648
sell on Market.CSGO: 1 076.32 $ to your card
cheapest lot 1 180.17 · lots 7
on CSFloat: from 1 038.44 $listings: 16
on CS.Money: ~ 1 221.83 $
on Lis-Skins: from 1 051.89 $listings: 32
float markup by input
how many times more the lots with the needed float cost
StatTrak™ M4A1-S | Cyrex (Battle-Scarred) × 1100% of the wear range fits×1.39195.05 → 270.66 $
StatTrak™ PP-Bizon | Judgement of Anubis (Field-Tested) × 4100% of the wear range fits×1.25502.83 → 627.43 $
The markup is taken from a check of Steam 25–26.09.2026 listings. It shows how many times the needed number of cheapest listings with a fitting float cost more than the cheapest listing of this wear. It depends on the width of the float window and on the number of items.
«No higher than» — is a guarantee. The limits are calculated together: take all items with the float at the upper bound and you get exactly the result shown. With a lower float the result will be better.
f′ — the same float, brought to 0–1 by the skin's own range. CSFloat counts the same way.
In a week, when the outcome can be sold
from outcome price history
In a bad week−359.30 $a worse week happens one time in ten
In a typical week−324.70 $historical median
3% of outcomes (by probability) have less than two weeks of price history, their price is taken as of today.
If you repeat
10 000 simulations over the outcome odds
I already have items
Enter their float and the site will pick what to buy
Items of this craft's collections of the right rarity fit: The Breakout Collection and The Chroma 3 Collection — and of the mixed-in collection: enter its items with float, your own or ones you want to buy. Its share in the set equals its share in the chances. Your own items are counted in the profit at market price, because you could sell them. The money needed to buy the rest is shown separately.
Third collection
Add a third collection to the craft's two and see whether it gets more profitable
All splits of inputs across three collections are tried (1/1/8, 5/3/2 and the rest) and all outcome wears. The best set is shown for each collection. “Find the best” first quickly scores all collections and then calculates exactly the five best by the quick score.
Similar
5 crafts almost like this one
One of three things counts as similar. The same set with a different wear of cheap outcomes: profit and investment differ by less than 0,5%. The same nine items with a different tenth: profit differs by no more than 10%, investment by 20%. The same main half, whose outcomes make the profit, with a different filler: profit lower by no more than a quarter, investment cheaper by no more than a quarter.
Craft 3405371
· The Gamma Collection + The Chroma 3 Collection · profit −299.18$
· invest 612.14$
no outcome pricemarketplace pricesells slowlyrare inputspricier variants exist
StatTrak™ Glock-18 | Wasteland Rebel (Battle-Scarred) instead of StatTrak™ M4A1-S | Cyrex (Battle-Scarred); StatTrak™ PP-Bizon | Judgement of Anubis (Field-Tested): float at most 0.370639 instead of 0.380000
Craft 3405380
· The Chroma 3 Collection + The Gamma Collection · profit −299.18$
· invest 612.14$
no outcome pricemarketplace pricesells slowlyrare inputspricier variants exist
StatTrak™ Glock-18 | Wasteland Rebel (Battle-Scarred) instead of StatTrak™ M4A1-S | Cyrex (Battle-Scarred); StatTrak™ PP-Bizon | Judgement of Anubis (Field-Tested): float at most 0.370639 instead of 0.380000
Craft 3405367
· The Gamma Collection + The Chroma 3 Collection · profit −300.31$
· invest 612.14$
no outcome pricemarketplace pricesells slowlyrare inputspricier variants exist
Craft 3404277
· The Chroma 3 Collection + The Breakout Collection · profit −316.23$
· invest 697.88$
no outcome pricemarketplace pricesells slowlyrare inputspricier variants exist
How to read these numbers
Fees. Steam adds 15% to the seller's price, so the seller gets the listing price divided by 1,15. Multiplying by 0,85 is wrong.
The outcome can only be sold after a week. Inputs bought on Steam go into the contract right away. The outcome can also be crafted further without waiting, but Sell it is possible only after seven days. Over a week the price may change, so the amount shown remains an estimate at calculation time.
Prices are conservative. Sales are counted at the lower of the listing price and the sale price. Purchases are counted at the cheapest listing, which is a lower bound. You cannot buy ten at that price: each next listing costs more. «Check floats on Steam» shows the real purchase price.