Trade out by liability formula

Hello, I've made a basic trigger that trades out the markets liability at low odds on a selection whose profit is greater than the liability. 
What I would like to add is the trigger only starts if the selections profit is 3 times greater the the markets (-market_min_pl) formula.
Could you show me how to add the multiplication into that formula if possible please.

Hi
Have a look at tradeout_net which is a selections "live" P/L. So 3x greater than -market_min_pl:
and selections trigger expression tradeout_net is equal or greater than -market_min_pl*3

Excellent, cheers Mark.