Hello, I am a bit confused on how we get some formulas. Here is a link to “Sal’s Shipping” https://www.codecademy.com/courses/learn-python-3/projects/sals-shipping

I figured out the formula on this one but the more complicated ones i become lost on. I cannot find the lesson but if i do i will update this, but for example if we have to do a loop and exponent each one then divide to total of all that by the average then check if that is equal to another equasion/formula. Maybe i’m just over complicating it but, I just can’t seem to get it. I am also unable to find a decent explaination through research on it. I’m a bit lost on this and though i will not give up it is a bit discouraging…Esspecially since I am trying to get into data science/computer science which, i’m sure we all know requires alot of that.

Summing up, could someone please try to simplify how we extract and apply these formulas? Thank you.