I know what you mean. I haven't lost a lot of weight yet, but I already feel like people can do the math. Or if I tell them I want to lose 117 lbs, they can figure out pretty quickly how much I weighed, or at least get in the ball park.

I don't have a good solution for you, although I have found that I tend to be honest about it. On the one hand, the number on the scale is mortifying, but on the other, I figure they see me day in and day out, and even though I may carry my weight well, they can see that I am overweight! Does that make any sense????

Celtinore might have nailed it for you, though, just stand firm with "quite a bit" and smile. Don't waiver (which I am not good at, so I can't walk the walk...)...

HTH,

Amy