Suggestions wanted on Views implementation approach

I'm using Views to display loan products and I've set filters up so that users can define their loan criteria so that eligible loan products can be displayed for that specific need. One of the items I want to display for each loan product is the monthly payment. Along with loan qualification I can collect Purchase Price, Down Payment and derive a loan amount. But I'm not sure what the best method is for then updating the Monthly Payment information for each loan product.

Any suggestions on an approach to explore or take here? I'm open to ideas.