Excel Macro for Statistical Calculations

I'm looking for an expert who can create a complex Excel macro for my needs. The macro should handle complex statistical calculations, particularly matching line item discounts to a new total. The line items primarily include product details.

Key Requirements:
- Expertise in Excel macro creation
- Proficient in statistical methods, specifically for matching discounts
- Familiarity with handling product data in Excel

This project is ideal for someone with extensive experience in Excel, particularly in creating macros for complex statistical computations.