This video is great explanation of the most common types of costs. https://www.youtube.com/watch?v=E7qWYu0xJfg. Pick a company from each of these industries and create a list of costs using what you learned. Explain how you allocated those costs. Here is a helpful link on cost allocation. https://www.fool.com/the-blueprint/cost-allocation/
Pharmaceuticals
Consumer Goods
Automotive