Excel COGS Spreadsheet for ServiceM8

I'm seeking an Excel expert to create a spreadsheet that organizes pricing for my materials on ServiceM8. This is for calculating the cost of goods sold as a Level 2 electrician.

Requirements:
- Organize pricing for raw materials, finished products, and service supplies.
- Include elements for COGS calculation: Material costs and Labor costs.
- Automatic calculations/formulas mixed with some manual entry.

Ideal Skills & Experience:
- Proficiency in Excel, especially in creating spreadsheets with automatic calculations.
- Experience with ServiceM8 software.
- Strong organizational skills to manage multiple pricing elements.