What am I doing wrong? New to Python

[SheeppOSU]

This should work. The count variable is used to check if the program is on the first item. If so, it sets total_weight equal to that item. Then count is increased by one so the program now multiplies the rest. After, it is multiplied by seven for the end result.

amount_of_plastic = [5, 2, 2, 20]
total_weight = 0
count = 0
for item in amount_of_plastic:
    if count != 0:
        total_weight *= item
    else:
        total_weight = item
        count = 1
total_weight *= 7