Interactive Excel Cost Calculator Tool

I need an interactive Excel tool that helps agents calculate the total cost of a new hire.

Requirements:
- Agents input new hire salary
- Calculates total cost including:
- Franchise fees
- Benefits and taxes
- Shows sales volume required for break-even

Ideal Skills & Experience:
- Advanced Excel proficiency
- Experience with cost calculation tools
- Ability to create user-friendly, interactive spreadsheets

Visual elements like charts or graphs are a plus but not mandatory.