Hiyall! Need a bit of thinky help here! My and I have a lil new year challenge set - we have brides/bridesmaid dress fittings beg of April. I'm firmly SW - she's with "the other lot". I have 1.5 stone to lose she has 2.5. We want to throw in a little incentive - like we'll buy a massage between us and first past the post gets it. But i can't work out how to make the measurements fair if she has more to lose... this might be a fairly basic maths q - so apols if i just sound dense! I initially thought % - but for me to lose 1lb, that's 5% loss for me, but for her to lose 1lb it's only 2% - so that doesnt feel fair. Any ideas on how to level the playing field? ta!