Financial model

Hello, does anyone know how I can create a financial model/ scenario analysis report?
Basically, I need a report to allow directions make a decision on the best way to deal with a product line . the options are: continue a weekly production, produce fortnightly with two options – better quality or existing quality , and the final option will be to produce monthly at a better quality.

Does anyone have an idea of an excel; template I could use please? that will also allow them test different figures.