- Cost
- $8.16
- EV
- 47%
- $3.80
- Profit
- −$4.86
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.149 (needs < 0.156)5 outcomesActive market
Reverse trade-up finder
Trade up to M249 | Emerald Poison Dart
10 Mil-Spec Grade skins from the Spectrum Case collection can become M249 | Emerald Poison Dart. 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 M249 | Emerald Poison Dart needs an average normalized input float below 0.1556 (output float 0.000–0.070). Best chance per contract: 20.0%.
- Cost
- $100.08
- EV
- 60%
- $59.70
- Profit
- −$48.17
- after fee
- Win %
- 40%
- to profit
Avg float ≤ 0.154 (needs < 0.156)8 outcomesSome thin prices
- Cost
- $2.95
- EV
- 43%
- $1.25
- Profit
- −$1.86
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.155 (needs < 0.156)10 outcomesActive market
- Cost
- $2.95
- EV
- 38%
- $1.11
- Profit
- −$1.99
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.155 (needs < 0.156)10 outcomesActive market
- Cost
- $3.04
- EV
- 44%
- $1.34
- Profit
- −$1.87
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.155 (needs < 0.156)10 outcomesActive market
- Cost
- $3.08
- EV
- 45%
- $1.40
- Profit
- −$1.87
- after fee
- Win %
- 4%
- to profit
Avg float ≤ 0.156 (needs < 0.156)10 outcomesActive market
Required input float for each M249 | Emerald Poison Dart wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.1556 | $2.95 | 20.0% |
| Minimal Wear | 0.070–0.150 | ≥ 0.1556 and < 0.3333 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.3333 and < 0.8444 | $1.07 | 20.0% |
| Well-Worn | 0.380–0.450 | ≥ 0.8444 and any | $2.39 | 20.0% |
| Battle-Scarred | Not possible — outside this skin's 0.00–0.45 float range | |||
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.45.
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.