Trader A follows Trader B and copy-trade her strategy. The performance fee applied from Trader B is 10%. At the end of the second day of August, Trader A performs a total gross profit (i.e. no volume fee or exchange fees applied) of $200, with STAR level of Trader A is "Nebula", which gives Trader A, no discount on his performance fee. At the end of the day, Trader A pays the following performance fee: $200 * 10% = $20.