Finalize Spreadsheet with advanced formulas

I need this spreadsheet fixed it has some broken formulas and other features overall the spreadsheet is 80 percent done. The spreadsheet is intended to input data about the weight of a product and give me a calculation of the cost based on other relevant data. I need 20 entry points per day Monday through Sunday

Take a peak at the spreadsheet link below:
https://docs.google.com/spreadsheets/d/1Qd9bAOvImrTQMbDNPw1fMugmEZxZhUu6ksE_D3xYQ7g/edit?usp=sharing

After viewing the spreadsheet we can discuss the changes needed in detail.