# Fee

Users are able to roughly estimate the cost of a transaction depending on the formulae given below as reference.

The Bridge Fee consists of two components.

The first part is omnichain service to deliver message . This portion is determined by the fluctuations in the market gas price and gasLimit want to use for execute on the destination chain .

The second part is levied to provide rewards to both the liquidity providers and the Protocol.

this part will be calculated based on the amount and a predetermined percentage factor.

$fee = amount * rate$There are lower bound and upper bound in the Fee.

$min\left\{ \begin{aligned} &minimum \\ &amount * rate \\ &maximum \end{aligned} \right.$If the trading volume multiplied by rate is less than the minimum, then this part fee will still charge the minimum as a basic commission.

If the trading volume multiplied by rate is more than the maximum, then this part fee will only charge the maximum as a basic commission.

Last updated