Need help figuring out sizes to feed 200 people. Thanks for sharing.

I believe there is a post about this. If you try to search "Topsy turvy servings" it should help. The topic was up probably sometime last week. Good luck.

http://cakecentral.com/cake-decorating-ftopict-670240-calculator.html

The calculator might give you sense of where to start, but keep in mind that the servings calculated are for standard (non-carved) cakes