Drat......I am beginning to see that I really suck at outlining problems. I sould have said the yield of individual ingredients in the yield percentage column.
Wait a minute............if I start out with 1 pound of eggplant and after peeling I have 8 ounces.......16 ounces makes a pound right? So shouldn't 50% be the yield after peeling??
That's not an equation....its a fraction. 8/16 = 1/2 = 50%

Sorry if I seem a little happy and silly but I haven't touched a math problem in a while and I think I stumbled into a brick wall in my mind. Just have to exercise the old bean. Been at a desk job where you weren't required to do much in the way of thinking before jumping into cooking.
Thanks Kuan.......needed that little push to see the answer that was right in front of me.
Thanks, thanks, thanks