What am I doing wrong? New to Python

[Stthmc_1995]

Thank you for your help, still a couple of issues with it, when attaching a return(total_amount) at the end of the code I get an error message "'return' outside function". Also I tested by printing the result, by doing this I noticed that it shows 4 different calculations one below the other representing each item in the list multiplied by 7. My intention is to have one number showing and that being the overall total.