Can someone help correctly solve case 5.3 for Spartech Corporation from Understanding Financial Statements? Here is a link to the full question from the book, it is very long. I need to make sure that I'm on track and that my figures are correct as my answer for this is 20% of my class grade. I have to write 6 pages of text and post all required financial documents. PLEASE HELP!

https://www.chegg.com/homework-help/spartech-corporationthe-following-excerpts-2010-form-10-k-sp-chapter-5-problem-3c-solution-9780132655064-exc