Deal Analysis Optimization

[Dave Dunaway]

Does anyone know of a deal analysis calculator or tool that doesn't just take the numbers and show IF a deal is good but, given, let's say, a certain ROI and cash flow, shows HOW a deal could be negotiated to meet basic requirements? I've done some preliminary searches and looked through the app stores and didn't see anything.

Actually, I've coded the back end of a simple one and it seems to work but if there is already one out there I don't want to waste my time.

If there isn't one, is this the kind of tool that you would find useful?