Hi,
I don't have financial background but if you will give me calculation method I can create the model that you need. I use Excel at a daily basis with complex formulas, array formulas, pivot table and charts, macros and VBA scripts, automatic calculation sheets, automatic simulators and charts drawing.
I will be pleased to help you with your project if you will give me this opportunity and I am sure you will be satisfied with my professionalism and the quality of my work.
Best regards,
Florin Enache.