Some also incorporate rules that call for them to stay out of the market if a predetermined number of losing trades are exceeded. (oanda.com)
The average loss per losing trade is your total loss from all your losing trades divided by the total number of losing trades. (babypips.com)
There will be days when the winning trades exceed the losing trades and there will also be days when the number of losing trades will exceed the winning trades. (binaryminery.com)