Order Data Visualization and Analysis

I need an organized analysis of our order data. This involves calculating and plotting charts for order quantities, lead times, and cost comparisons across four tabs.

Requirements:
- Calculate and distribute lead times
- Plot required charts (line, bar, pie)
- Visualize order quantities, lead times, and cost comparisons

Ideal Skills:
- Proficient in data analysis tools (Excel, Python, etc.)
- Experience in creating and interpreting data visualizations
- Strong analytical and organizational skills

Please provide a sample of similar work done.