Hi
For LAY trigger price box:
If current loss is equal or greater than 25%: bm_backp*1.35
If current loss is less than 25%: 0% loss<I'm not sure I think lay_price, please suggest the calculation if lay_price is wrong>
You need an IF statement in the price box.
IF(lay_price>=bm_backp*(100+25)/100,bm_backp*1.35,lay_price)
or the correct formula ^