Payback Calculator

Pick an exchange and tweak your trading profile — we compute the monthly payback in real time.

Exchange

Trading type

Preset

Seed

100500,000

Leverage

1125

Trades per day

050

Maker ratio50%

Estimated monthly payback

4,536 USDT

≈ ₩6,259,680

Effective savings

38.8%

Full math, fully open

We show every number in the calculation. This is the core of what makes fairbe different.

Monthly notional = seed × leverage × trades/day × days × 2 (entry + exit)45,000,000 USDT
Effective fee rate = maker × makerRatio + taker × (1 − makerRatio)0.035%
Pre-discount fee = notional × effective fee rate15,750 USDT
Post-discount fee = pre-discount × (1 − trading discount)14,175 USDT (−10%)
Our commission = post-discount × affiliate commission rate5,670 USDT (×40%)
Your payback = our commission × payback rate4,536 USDT (×80%)
Effective savings = (pre-discount − post-discount + payback) / pre-discount38.80%