How do I recover my full p/l on the next bet?

Hi, simple really I adjusted a trigger, but want it to recover my full current loss on the next bet which formula do i use?

Currently I am betting £1 , after four losses I get a win on the fifth so my sixth bet I want to recover the full loss plus £1. What is the formula I need to do this. I have all my other conditions set.

Hi
In test mode try: last_lost + init_bet

init_bet is your initial bet amount

last_lost is "The total amount that you lost since the last win. If you did not lose in any market this will be equal to 0. If you won the first event and then lost the next three events, then this value will be the sum of three losses."