# πͺHow it works

## How is the payout calculated?

• Payout multipliers are locked once the timer ends - the point at which 'next' round becomes the new 'live' one.

• Prize pool = Pool UP + Pool DOWN

• Payout multiplier for UP Pool = Prize pool Γ· Pool UP

• Payout multiplier for DOWN Pool = Prize pool Γ· Pool DOWN

For example, if thereβs 15 ETH in the DOWN side of a round, and the overall prize pool is 150 ETH, the DOWN payout ratio will be (150/15)=10x.

• Payout Amount = Payout multiplier Γ Position Γ (1 - Treasury Fee)

In the above case, if the round ends on a DOWN result, if you committed 2 ETH to a DOWN position, youβd get a payout of (2*10) Γ (1-0.03) = 19.4 ETH. Your profit would be 17.4 ETH (19.4 - 2).

Fees to Arbswap: 3% of each round's total prize pool will go to Arbswap treasury.

## How does prediction source for price feed?

To provide better experiences on Predictions, Arbswap calls Binance API to provide price feed on ARBUSDT price.

## Contracts

ARB Prediction contract:

Price feed Oracle:

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