Excel Worksheet with Formula Creation

We need to create fillable worksheets to supplement or our online course for Interior Designers to calculate project fees based on factors of the project scope such as product markup, square footage, budget, etc. The goal of this excel worksheet is for designers to put in their project information and have their fees automatically calculated for them based on the information they insert.

This project requires someone with excel experience as well as a math background to help create the formulas in which the information will work off of.