- Cost
- $26.00
- EV
- 57%
- $14.83
- Profit
- −$13.10
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.214 (needs < 0.233)4 outcomesActive market
Reverse trade-up finder
Trade up to MP9 | Rose Iron
10 Mil-Spec Grade skins from the Winter Offensive Weapon Case collection can become MP9 | Rose Iron. 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 MP9 | Rose Iron needs an average normalized input float below 0.2333 (output float 0.000–0.070). Best chance per contract: 25.0%.
- Cost
- $103.28
- EV
- 64%
- $65.83
- Profit
- −$46.04
- after fee
- Win %
- 40%
- to profit
Avg float ≤ 0.233 (needs < 0.233)7 outcomesSome thin prices
- Cost
- $3.64
- EV
- 54%
- $1.98
- Profit
- −$1.92
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.233 (needs < 0.233)9 outcomesSome thin prices
- Cost
- $3.68
- EV
- 52%
- $1.92
- Profit
- −$2.01
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.231 (needs < 0.233)9 outcomesSome thin prices
- Cost
- $3.75
- EV
- 58%
- $2.17
- Profit
- −$1.86
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.233 (needs < 0.233)9 outcomesSome thin prices
- Cost
- $3.76
- EV
- 55%
- $2.05
- Profit
- −$1.98
- after fee
- Win %
- 10%
- to profit
Avg float ≤ 0.233 (needs < 0.233)9 outcomesSome thin prices
Required input float for each MP9 | Rose Iron wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.2333 | $3.64 | 25.0% |
| Minimal Wear | 0.070–0.150 | ≥ 0.2333 and < 0.5000 | $2.56 | 25.0% |
| Field-Tested | 0.150–0.300 | ≥ 0.5000 and any | $2.37 | 25.0% |
| Well-Worn | Not possible — outside this skin's 0.00–0.30 float range | |||
| Battle-Scarred | Not possible — outside this skin's 0.00–0.30 float range | |||
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.30.
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.