- Cost
- $5.36
- EV
- 38%
- $2.04
- Profit
- −$3.59
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.158 (needs < 0.159)5 outcomesActive market
Reverse trade-up finder
Trade up to MAG-7 | Petroglyph
10 Mil-Spec Grade skins from the Gamma 2 Case collection can become MAG-7 | Petroglyph. 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 MAG-7 | Petroglyph needs an average normalized input float below 0.1591 (output float 0.000–0.070). Best chance per contract: 20.0%.
- Cost
- $101.20
- EV
- 58%
- $58.83
- Profit
- −$50.04
- after fee
- Win %
- 40%
- to profit
Avg float ≤ 0.157 (needs < 0.159)8 outcomesSome thin prices
- Cost
- $2.60
- EV
- 37%
- $0.96
- Profit
- −$1.76
- after fee
- Win %
- 2%
- to profit
Avg float ≤ 0.158 (needs < 0.159)10 outcomesActive market
- Cost
- $2.61
- EV
- 43%
- $1.11
- Profit
- −$1.64
- after fee
- Win %
- 2%
- to profit
Avg float ≤ 0.158 (needs < 0.159)10 outcomesActive market
- Cost
- $2.67
- EV
- 45%
- $1.20
- Profit
- −$1.63
- after fee
- Win %
- 2%
- to profit
Avg float ≤ 0.159 (needs < 0.159)10 outcomesActive market
- Cost
- $2.97
- EV
- 49%
- $1.46
- Profit
- −$1.70
- after fee
- Win %
- 2%
- to profit
Avg float ≤ 0.158 (needs < 0.159)10 outcomesActive market
Required input float for each MAG-7 | Petroglyph wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.1591 | $2.60 | 20.0% |
| Minimal Wear | 0.070–0.150 | ≥ 0.1591 and < 0.3409 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.3409 and < 0.8636 | $0.95 | 20.0% |
| Well-Worn | 0.380–0.440 | ≥ 0.8636 and any | $2.41 | 20.0% |
| Battle-Scarred | Not possible — outside this skin's 0.00–0.44 float range | |||
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.44.
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.