Conversion Markup concept is to add additional markup ( Conversion Fees ) to Closing Trades, Trades with specific Profit currency that matching the one in the Plugin will have conversion fees that will be subtracted from PnL of that closed Trade.

In the plugin only need to specify the Percentage that will be deducted for example If client closing USDJPY Order with PnL Equal to 20$ , and in the plugin we specify 0.1% to be as conversion fees in this case the total Pnl Will be 19.98$ where the 0.1% for 20$ PnL are equal to 0.02$ , If the PnL was -20$ , then final result with conversion fees is -20.02$