The Gallery Collection
+ The Train 2025 Collection
Restricted → Classified
About the craftCraft 3346743 · ways to build: 5The Steam fee is included. You can sell the outcome a week after crafting.
How to build
Ways to build
5 ways: the best first, then from the most accessible. Click a tab and the numbers below are recalculated for that way.
!
0% of lots fit:на контракт не хватает: нужно 6 шт., годных ≈0, цена занижена≈ market listings are not enough for even one contract (estimate)Price understated: Only 6% of the wear range fits, and lots with a rare float cost more. The calculation uses the average price without float, the real purchase will cost more.
×6
P90 | Randy Rush
Minimal Wear
buy0.0700–0.0747
(under 1% of this wear's listings)
696.60 ₽
at 116.10
if this one runs out, you can take
Dual Berettas | Hydro Strike (Minimal Wear) — 213.33 ₽+97.23 ₽ per item · on the market 124 · buy0.0700–0.0798
M4A4 | Turbine (Minimal Wear) — 270.56 ₽+154.46 ₽ per item · on the market 170 · buy0.0700–0.0846
SSG 08 | Rapid Transit (Minimal Wear) — 347.20 ₽+231.10 ₽ per item · on the market 91 · buy0.0700–0.0747
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.074714f′ (normalized) 0.099619wear 0.0700–0.1500on the market 75 · good ≈ 0
Market history: no data yet
Lis-Skins: suitable 2 of 164 · from 102.77 ₽ (float 0.0745) · craft not before 31.10 · data 23.10 13:22 MSK
×3
P90 | Randy Rush
Factory New
buy0.0000–0.0041
(≈1% of this wear's listings)
694.38 ₽
at 231.46
if this one runs out, you can take
MAC-10 | Saibā Oni (Factory New) — 407.23 ₽+175.77 ₽ per item · on the market 114 · buy0.0000–0.0036
Dual Berettas | Hydro Strike (Factory New) — 422.65 ₽+191.19 ₽ per item · on the market 93 · buy0.0000–0.0044
SSG 08 | Rapid Transit (Factory New) — 558.76 ₽+327.30 ₽ per item · on the market 97 · buy0.0000–0.0041
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.004125f′ (normalized) 0.005500wear 0.0000–0.0700on the market 84 · good ≈ 1
on the market with this float, usually ~5,
new listings per day can't be counted yet, cheapest usually 1 201.43 ₽ · little data, days: 0
Lis-Skins: suitable 2 of 98 · from 1 469.73 ₽ (float 0.0031) · craft not before 31.10 · data 23.10 13:22 MSK
×1
Zeus x27 | Charged Up
Field-Tested
buy0.1500–0.1635
(0% of this wear's listings)
163.58 ₽
at 163.58
if this one runs out, you can take
Tec-9 | Whiteout (Field-Tested) — 227.03 ₽+63.45 ₽ per item · on the market 960 · buy0.1500–0.2137
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+248.78 ₽ per item · on the market 323 · buy0.0700–0.1144
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.163555f′ (normalized) 0.163555wear 0.1500–0.3800on the market 433 · good ≈ 0
on the market with this float, usually ~0,
new listings per day: fewer than one
Lis-Skins: suitable 4 of 185 · from 593.76 ₽ (float 0.1576) · craft not before 31.10 · data 23.10 13:22 MSK
Set · 10 pcs1 554.56 ₽
+375.53
(+24.2%)
!
Less than 1% of lots fit:на контракт не хватает: нужно 3 шт., годных ≈0, цена занижена≈ market listings are not enough for even one contract (estimate)Price understated: Only 7% of the wear range fits, and lots with a rare float cost more. The calculation uses the average price without float, the real purchase will cost more.
×3
P90 | Randy Rush
Minimal Wear
buy0.0700–0.0758
(under 1% of this wear's listings)
348.30 ₽
at 116.10
if this one runs out, you can take
Dual Berettas | Hydro Strike (Minimal Wear) — 213.33 ₽+97.23 ₽ per item · on the market 124 · buy0.0700–0.0810
M4A4 | Turbine (Minimal Wear) — 270.56 ₽+154.46 ₽ per item · on the market 170 · buy0.0700–0.0859
SSG 08 | Rapid Transit (Minimal Wear) — 347.20 ₽+231.10 ₽ per item · on the market 91 · buy0.0700–0.0758
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.075838f′ (normalized) 0.101118wear 0.0700–0.1500on the market 75 · good ≈ 0
Market history: no data yet
Lis-Skins: suitable 4 of 164 · from 102.77 ₽ (float 0.0745) · craft not before 31.10 · data 23.10 13:22 MSK
×4
P90 | Randy Rush
Factory New
buy0.0000–0.0051
(≈1% of this wear's listings)
925.84 ₽
at 231.46
if this one runs out, you can take
MAC-10 | Saibā Oni (Factory New) — 407.23 ₽+175.77 ₽ per item · on the market 114 · buy0.0000–0.0044
Dual Berettas | Hydro Strike (Factory New) — 422.65 ₽+191.19 ₽ per item · on the market 93 · buy0.0000–0.0054
SSG 08 | Rapid Transit (Factory New) — 558.76 ₽+327.30 ₽ per item · on the market 97 · buy0.0000–0.0051
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.005108f′ (normalized) 0.006811wear 0.0000–0.0700on the market 84 · good ≈ 1
on the market with this float, usually ~5,
new listings per day can't be counted yet, cheapest usually 1 201.43 ₽ · little data, days: 0
Lis-Skins: suitable 2 of 98 · from 1 469.73 ₽ (float 0.0031) · craft not before 31.10 · data 23.10 13:22 MSK
×2
Zeus x27 | Charged Up
Field-Tested
buy0.1500–0.1667
(under 1% of this wear's listings)
327.16 ₽
at 163.58
if this one runs out, you can take
Tec-9 | Whiteout (Field-Tested) — 227.03 ₽+63.45 ₽ per item · on the market 960 · buy0.1500–0.2167
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+248.78 ₽ per item · on the market 323 · buy0.0700–0.1167
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.166786f′ (normalized) 0.166786wear 0.1500–0.3800on the market 433 · good ≈ 1
on the market with this float, usually ~1,
new listings per day: fewer than one, cheapest usually 18 408.63 ₽
Lis-Skins: suitable 4 of 185 · from 593.76 ₽ (float 0.1576) · craft not before 31.10 · data 23.10 13:22 MSK
×1
Tec-9 | Whiteout
Field-Tested
buy0.1500–0.1667
(under 1% of this wear's listings)
227.03 ₽
at 227.03
if this one runs out, you can take
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+185.33 ₽ per item · on the market 323 · buy0.0700–0.0795
Zeus x27 | Charged Up (Minimal Wear) — 565.00 ₽+337.97 ₽ per item · on the market 168 · buy0.0700–0.1136
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.166786f′ (normalized) 0.113602wear 0.1500–0.3800on the market 960 · good ≈ 2
on the market with this float, usually ~0,
new listings per day can't be counted yet · among lots up to 768.56 ₽ · little data, days: 0
Lis-Skins: suitable 38 of 667 · from 954.26 ₽ (float 0.1561) · craft not before 31.10 · data 23.10 13:22 MSK
Set · 10 pcs1 828.33 ₽
+236.72
(+12.9%)
!
0% of lots fit:на контракт не хватает: нужно 1 шт., годных ≈0, цена занижена≈ market listings are not enough for even one contract (estimate)Price understated: Only 6% of the wear range fits, and lots with a rare float cost more. The calculation uses the average price without float, the real purchase will cost more.
×1
P90 | Randy Rush
Minimal Wear
buy0.0700–0.0745
(under 1% of this wear's listings)
116.10 ₽
at 116.10
if this one runs out, you can take
Dual Berettas | Hydro Strike (Minimal Wear) — 213.33 ₽+97.23 ₽ per item · on the market 124 · buy0.0700–0.0796
M4A4 | Turbine (Minimal Wear) — 270.56 ₽+154.46 ₽ per item · on the market 170 · buy0.0700–0.0844
SSG 08 | Rapid Transit (Minimal Wear) — 347.20 ₽+231.10 ₽ per item · on the market 91 · buy0.0700–0.0745
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.074523f′ (normalized) 0.099365wear 0.0700–0.1500on the market 75 · good ≈ 0
Market history: no data yet
Lis-Skins: suitable 1 of 164 · from 494.26 ₽ (float 0.0711) · craft not before 31.10 · data 23.10 13:22 MSK
×5
P90 | Randy Rush
Factory New
buy0.0000–0.0039
(≈1% of this wear's listings)
1 157.30 ₽
at 231.46
if this one runs out, you can take
MAC-10 | Saibā Oni (Factory New) — 407.23 ₽+175.77 ₽ per item · on the market 114 · buy0.0000–0.0034
Dual Berettas | Hydro Strike (Factory New) — 422.65 ₽+191.19 ₽ per item · on the market 93 · buy0.0000–0.0042
SSG 08 | Rapid Transit (Factory New) — 558.76 ₽+327.30 ₽ per item · on the market 97 · buy0.0000–0.0039
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.003958f′ (normalized) 0.005277wear 0.0000–0.0700on the market 84 · good ≈ 1
on the market with this float, usually ~5,
new listings per day can't be counted yet, cheapest usually 1 201.43 ₽ · little data, days: 0
Lis-Skins: suitable 2 of 98 · from 1 469.73 ₽ (float 0.0031) · craft not before 31.10 · data 23.10 13:22 MSK
×4
Zeus x27 | Charged Up
Field-Tested
buy0.1500–0.1630
(0% of this wear's listings)
654.32 ₽
at 163.58
if this one runs out, you can take
Tec-9 | Whiteout (Field-Tested) — 227.03 ₽+63.45 ₽ per item · on the market 960 · buy0.1500–0.2132
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+248.78 ₽ per item · on the market 323 · buy0.0700–0.1141
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.163005f′ (normalized) 0.163005wear 0.1500–0.3800on the market 433 · good ≈ 0
on the market with this float, usually ~0,
new listings per day: fewer than one
Lis-Skins: suitable 4 of 185 · from 593.76 ₽ (float 0.1576) · craft not before 31.10 · data 23.10 13:22 MSK
Set · 10 pcs1 927.72 ₽
+204.82
(+10.6%)
!
Less than 1% of lots fit:на контракт не хватает: нужно 3 шт., годных ≈1, цена занижена≈ market listings are not enough for even one contract (estimate)Price understated: Only 5% of the wear range fits, and lots with a rare float cost more. The calculation uses the average price without float, the real purchase will cost more.
×3
P90 | Randy Rush
Factory New
buy0.0000–0.0037
(≈1% of this wear's listings)
694.38 ₽
at 231.46
if this one runs out, you can take
MAC-10 | Saibā Oni (Factory New) — 407.23 ₽+175.77 ₽ per item · on the market 114 · buy0.0000–0.0033
Dual Berettas | Hydro Strike (Factory New) — 422.65 ₽+191.19 ₽ per item · on the market 93 · buy0.0000–0.0040
SSG 08 | Rapid Transit (Factory New) — 558.76 ₽+327.30 ₽ per item · on the market 97 · buy0.0000–0.0037
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.003778f′ (normalized) 0.005037wear 0.0000–0.0700on the market 84 · good ≈ 1
on the market with this float, usually ~5,
new listings per day can't be counted yet, cheapest usually 1 201.43 ₽ · little data, days: 0
Lis-Skins: suitable 2 of 98 · from 1 469.73 ₽ (float 0.0031) · craft not before 31.10 · data 23.10 13:22 MSK
×7
Tec-9 | Whiteout
Field-Tested
buy0.1500–0.1624
(under 1% of this wear's listings)
1 589.21 ₽
at 227.03
if this one runs out, you can take
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+185.33 ₽ per item · on the market 323 · buy0.0700–0.0762
Zeus x27 | Charged Up (Minimal Wear) — 565.00 ₽+337.97 ₽ per item · on the market 168 · buy0.0700–0.1089
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.162414f′ (normalized) 0.108951wear 0.1500–0.3800on the market 960 · good ≈ 1
on the market with this float, usually ~0,
new listings per day can't be counted yet · among lots up to 768.56 ₽ · little data, days: 0
Lis-Skins: suitable 33 of 667 · from 954.26 ₽ (float 0.1561) · craft not before 31.10 · data 23.10 13:22 MSK
Set · 10 pcs2 283.59 ₽
+51.40
(+2.2%)
!
0% of lots fit:на контракт не хватает: нужно 4 шт., годных ≈1, цена занижена≈ market listings are not enough for even one contract (estimate)Price understated: Only 5% of the wear range fits, and lots with a rare float cost more. The calculation uses the average price without float, the real purchase will cost more.
×4
P90 | Randy Rush
Factory New
buy0.0000–0.0036
(≈1% of this wear's listings)
925.84 ₽
at 231.46
if this one runs out, you can take
MAC-10 | Saibā Oni (Factory New) — 407.23 ₽+175.77 ₽ per item · on the market 114 · buy0.0000–0.0032
Dual Berettas | Hydro Strike (Factory New) — 422.65 ₽+191.19 ₽ per item · on the market 93 · buy0.0000–0.0039
SSG 08 | Rapid Transit (Factory New) — 558.76 ₽+327.30 ₽ per item · on the market 97 · buy0.0000–0.0036
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.003662f′ (normalized) 0.004882wear 0.0000–0.0700on the market 84 · good ≈ 1
on the market with this float, usually ~5,
new listings per day can't be counted yet, cheapest usually 1 201.43 ₽ · little data, days: 0
Lis-Skins: suitable 2 of 98 · from 1 469.73 ₽ (float 0.0031) · craft not before 31.10 · data 23.10 13:22 MSK
×2
Zeus x27 | Charged Up
Field-Tested
buy0.1500–0.1620
(0% of this wear's listings)
327.16 ₽
at 163.58
if this one runs out, you can take
Tec-9 | Whiteout (Field-Tested) — 227.03 ₽+63.45 ₽ per item · on the market 960 · buy0.1500–0.2123
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+248.78 ₽ per item · on the market 323 · buy0.0700–0.1134
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.162032f′ (normalized) 0.162032wear 0.1500–0.3800on the market 433 · good ≈ 0
on the market with this float, usually ~0,
new listings per day: fewer than one
Lis-Skins: suitable 4 of 185 · from 593.76 ₽ (float 0.1576) · craft not before 31.10 · data 23.10 13:22 MSK
×4
Tec-9 | Whiteout
Field-Tested
buy0.1500–0.1620
(under 1% of this wear's listings)
908.12 ₽
at 227.03
if this one runs out, you can take
MAC-10 | Derailment (Minimal Wear) — 412.36 ₽+185.33 ₽ per item · on the market 323 · buy0.0700–0.0759
Zeus x27 | Charged Up (Minimal Wear) — 565.00 ₽+337.97 ₽ per item · on the market 168 · buy0.0700–0.1085
SteamBuyLis-SkinsCSFloatMarket.CSGOPurchase detailsexact upper edge 0.162032f′ (normalized) 0.108545wear 0.1500–0.3800on the market 960 · good ≈ 1
on the market with this float, usually ~0,
new listings per day can't be counted yet · among lots up to 768.56 ₽ · little data, days: 0
Lis-Skins: suitable 32 of 667 · from 954.26 ₽ (float 0.1561) · craft not before 31.10 · data 23.10 13:22 MSK
Set · 10 pcs2 161.12 ₽
+106.38
(+4.9%)
Another set, profit no worse than the best by%
What you get
5 outcomes
Profitable outcome 40%
Losing outcome 60%
in profit
best
AK-47 | The Outsiders
Factory New
float up to 0.069999
4 267.89 ₽30.00%
SteamAK-47 | The Outsiders (Factory New)net 3 711.21 ₽sells 13 a weeknow 4 267.89 ₽ — cheaper than the month average 4 799.68 ₽sell now to a buy order: 4 322.22 ₽
(you get 3 758.45 ₽)) · buy orders: 4237
sell on Market.CSGO: 3 783.91 ₽ to your card
cheapest lot 4 149.03 · lots 31
on CSFloat: from 3 627.02 ₽listings: 77
on CS.Money: ~ 3 947.45 ₽
on Lis-Skins: from 3 677.74 ₽listings: 301
at a loss
P250 | Epicenter
Factory New
float up to 0.062222
1 352.59 ₽30.00%
SteamP250 | Epicenter (Factory New)net 1 176.17 ₽sells 7 a weeknow 1 352.59 ₽ — cheaper than the month average 1 834.91 ₽sell now to a buy order: 1 410.61 ₽
(you get 1 226.61 ₽)) · buy orders: 3863
sell on Market.CSGO: 1 279.51 ₽ to your card
cheapest lot 1 402.98 · lots 11
on CSFloat: from 1 107.83 ₽listings: 111
on CS.Money: ~ 1 153.72 ₽
on Lis-Skins: from 1 226.18 ₽listings: 111
at a loss
worst
UMP-45 | Neo-Noir
Minimal Wear
float up to 0.077777
805.51 ₽30.00%
SteamUMP-45 | Neo-Noir (Minimal Wear)net 700.44 ₽sells 54 a weeknow 805.51 ₽ — cheaper than the month average 942.58 ₽sell now to a buy order: 771.50 ₽
(you get 670.86 ₽)) · buy orders: 5274
sell on Market.CSGO: 689.01 ₽ to your card
cheapest lot 755.50 · lots 20
on CSFloat: from 621.55 ₽listings: 117
on CS.Money: ~ 655.36 ₽
on Lis-Skins: from 671.46 ₽listings: 92
in profit
M4A4 | Hellish
Minimal Wear
float up to 0.077777
3 110.00 ₽5.00%
SteamM4A4 | Hellish (Minimal Wear)net 2 704.35 ₽The Train 2025 Collectionsells 68 a weeknow 3 110.00 ₽ — cheaper than the month average 3 236.10 ₽sell now to a buy order: 3 055.87 ₽
(you get 2 657.27 ₽)) · buy orders: 1643
sell on Market.CSGO: 2 593.06 ₽ to your card
cheapest lot 2 843.27 · lots 47
on CSFloat: from 2 383.13 ₽listings: 186
on CS.Money: ~ 2 584.40 ₽
on Lis-Skins: from 2 518.38 ₽listings: 280
in profit
MP9 | Latte Rush
Minimal Wear
float up to 0.077777
2 726.10 ₽5.00%
SteamMP9 | Latte Rush (Minimal Wear)net 2 370.52 ₽The Train 2025 Collectionsells 22 a weeknow 2 726.10 ₽ — cheaper than the month average 2 880.88 ₽sell now to a buy order: 2 661.45 ₽
(you get 2 314.30 ₽)) · buy orders: 1646
sell on Market.CSGO: 2 371.29 ₽ to your card
cheapest lot 2 600.10 · lots 30
on CSFloat: from 2 254.31 ₽listings: 105
on CS.Money: ~ 2 243.84 ₽
on Lis-Skins: from 2 177.82 ₽listings: 156
float markup by input
how many times more the lots with the needed float cost
P90 | Randy Rush (Minimal Wear) × 66% of the wear range fitsat least ×2.51696.60 → 1 748.47 ₽
P90 | Randy Rush (Factory New) × 36% of the wear range fitsat least ×2.26694.38 → 1 569.30 ₽
Zeus x27 | Charged Up (Field-Tested) × 16% of the wear range fitsat least ×2.16163.58 → 353.33 ₽
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.
Average float of the set
average normalized 0.077777678
outcomes come out up to 0.069999, 0.062222, 0.077777, 0.077777, 0.077777
How to read float
«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.
Craft variants
Craft variants
One of this craft's two collections paired with another collection, same rarity. Click a variant to open its page with all the numbers. The variants may include a craft at a small loss: no more than 15% of the investment, if its most expensive outcome brings at least three investments after the fee and that outcome's price is confirmed by sales.
Variant 1 this oneThe Gallery Collection + The Train 2025 Collection
In a week, when the outcome can be sold
from outcome price history
In a bad week−52.23 ₽a worse week happens one time in ten
In a typical week+251.25 ₽historical median
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 Gallery Collection and The Train 2025 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 3338447
· The Chroma Collection + The Gallery Collection · profit 416.41₽
· invest 1 579.09₽
sells slowlyrare inputs
Desert Eagle | Naga (Field-Tested) instead of Zeus x27 | Charged Up (Field-Tested)
Craft 3330519
· The Arabesque Collection + The Gallery Collection · profit 412.74₽
· invest 1 674.46₽
sells slowlyrare inputs
Glock-18 | Ifrit Lattice (Field-Tested) instead of Zeus x27 | Charged Up (Field-Tested)
Craft 3346721
· The Gallery Collection + The Spy Tech Collection · profit 381.24₽
· invest 1 661.54₽
sells slowlyrare inputs
CZ75-Auto | Hydraulics (Field-Tested) instead of Zeus x27 | Charged Up (Field-Tested)
Craft 3346084
· The Gallery Collection + The Horizon Collection · profit 377.51₽
· invest 1 480.62₽
sells slowlyrare inputs
CZ75-Auto | Eco (Field-Tested) instead of Zeus x27 | Charged Up (Field-Tested)
Craft 3346797
· The Gallery Collection + The Wildfire Collection · profit 375.87₽
· invest 1 577.30₽
sells slowlyrare inputs
MAG-7 | Praetorian (Minimal Wear) instead of Zeus x27 | Charged Up (Field-Tested); P90 | Randy Rush (Minimal Wear): float at most 0.074534 instead of 0.074714; P90 | Randy Rush (Factory New): float at most 0.003967 instead of 0.004125
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.