Truck Operating Cost Calculator Development in Power BI App

I need a detailed truck operating cost calculator that can provide per hour, per km, and per trip cost outputs.

The calculator should include the following data inputs:
- Fuel consumption
- Maintenance costs
- Drivers' wages
- Fixed costs (insurance, rego, etc.)
- Tyre costs
- Finance costs
- Toll costs

The outputs should be customizable based on the job I'm evaluating. Also, the PowerApp must be able to have multiple trucks which will all have different inputs and the PowerApp must be able to store all that data and have summarised tables.

Ideal skills and experience:
- Extremely strong proficiency in PowerApps and Excel
- Experience developing cost calculators or financial models
- Attention to detail and accuracy
- Ability to create user-friendly interfaces

I have attached an example of an excel based calculator I saw online but I want a far more in depth calculator (multiple trucks, summary pages, etc), a cleaner interface, and visualisations in terms of graphs and charts