Amount per trade configuration:
Main Menu > Bot Configuration > Trading > client name > General > Amount per Trade
Percentage will take a flat out percentage from your available amount plus the amount from your open trades.
For example, let's say you have 5000 USD total portfolio, 1000 USD available in your account and 1000 USD worth in open trades, if you choose to use 5% then the bot will open a trade of size 100 USD.
Risk Percentage calculates the distance from the entry price to the stop price and then tries to squeeze the amount of contracts into the trade so that when you hit your stop loss you will lose the % that you chose out of your portfolio. This method can be used for effective risk management.
Fixed BTC Amount
The BTC amount will be converted to the equivalent amount of the trading pair.
For example, let's say you create a trade for LTC/USDT and you chose to use 1 BTC then the bot will open a trade of size X USDT that equal to 1 BTC.
* leverage - in this section you choose the investment amount, so in margin exchanges the position size will be about the investment amount * leverage.