Hello, Heva. I got as far as I could in an Excel spreadsheet that I copied onto a Google Sheets worksheet: https://docs.google.com/spreadsheets/d/1kZIwLLCx3XszMXA_pWKgxH2yGlHhYhUpyWmV3C_J7mg/edit?usp=sharing
The work shows the Heva Wool Company's overall sales, expenses, and profits. You can see how the Excel formulas work from those entries. I wasn't clear how to answer the questions pertaining to subsegments of the business, primarily because the cost of wool and separation aren't allocated separately - they are divided into the product areas for which the questions are asked. I may misunderstand, but you can use the same formulas and strategy to get those numbers.
I wasn't clear if you primarily needed help on the actual calculations, or on how to use Excel. Please ask if you have specific questions.
Bob