- Cost
- $81.19
- EV
- 68%
- $55.03
- Profit
- −$33.33
- after fee
- Win %
- 33%
- to profit
Avg float ≤ 0.078 (needs < 0.082)3 outcomesActive market
Reverse trade-up finder
Trade up to M4A1-S | Decimator
10 Restricted skins from the Spectrum Case collection can become M4A1-S | Decimator. Pick a wear to see every realistic route, its odds, cost and the input float it needs.
Prices as of Oct 27, 2026Steam Community Market averages · snapshot 2026-10-27 10:25 UTC
Factory New M4A1-S | Decimator needs an average normalized input float below 0.0824 (output float 0.000–0.070). Best chance per contract: 33.3%.
- Cost
- $78.79
- EV
- 73%
- $57.12
- Profit
- −$29.12
- after fee
- Win %
- 33%
- to profit
Avg float ≤ 0.077 (needs < 0.082)6 outcomesActive market
- Cost
- $62.08
- EV
- 64%
- $39.68
- Profit
- −$27.57
- after fee
- Win %
- 20%
- to profit
Avg float ≤ 0.082 (needs < 0.082)6 outcomesActive market
- Cost
- $51.20
- EV
- 61%
- $31.44
- Profit
- −$23.86
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.082 (needs < 0.082)6 outcomesActive market
- Cost
- $52.32
- EV
- 57%
- $29.83
- Profit
- −$26.38
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.082 (needs < 0.082)6 outcomesSome thin prices
- Cost
- $45.60
- EV
- 54%
- $24.70
- Profit
- −$24.12
- after fee
- Win %
- 3%
- to profit
Avg float ≤ 0.082 (needs < 0.082)6 outcomesActive market
Required input float for each M4A1-S | Decimator wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.0824 | $45.60 | 33.3% |
| Minimal Wear | 0.070–0.150 | ≥ 0.0824 and < 0.1765 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.1765 and < 0.4471 | $6.48 | 30.0% |
| Well-Worn | 0.380–0.450 | ≥ 0.4471 and < 0.5294 | no priced route | — |
| Battle-Scarred | 0.450–0.850 | ≥ 0.5294 and any | $5.80 | 33.3% |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.85.
Other trade-up targets in this collection
How CS2 trade-up contracts work
Inputs & odds
10 skins of one rarity become 1 skin of the next rarity (Mil-Spec → Restricted → Classified → Covert). Since the October 2025 update, 5 Covert skins can become a knife or gloves from those skins' case. Each input collection gets its share of the odds (inputs from it ÷ total), split evenly across that collection's next-tier skins.
Float math
Every input float is normalized to its own skin's range — (float − min) ÷ (max − min) — and averaged. Each output's float is its min + average × (max − min), so a restricted-range skin like 0.10–0.20 can only land in the wears its range allows.
Prices, fees & freshness
Values are Steam Community Market averages from the snapshot dated on each page. Profit subtracts the ~13% Steam seller fee. StatTrak™ inputs give StatTrak™ outputs (knives only — gloves have no StatTrak™). Map collections outside weapon cases aren't in DropLabz's dataset yet.
Pick the skin you want in the reverse trade-up finder, check any contract in the trade-up calculator, or compare with opening cases on case ROI and knife odds.