So this is my homework. However, when I looked at the answers for it online at course hero, I did not understand how they got the answer. Please help. Thank you very much!

This is from accounting 11 chapter 8 more about the income statement. I do not understand how the answer from course hero was done. I tried doing the calculations myself. However, it did not match. Therefore, I need help. Thank you very much.

I do not understand why it is keeping on giving me the missing information. I double-checked and I am not missing any information. Thanks.

Work: