Question

how do I figure the amount of interest I paid for my whole loan

Answer 1

and how to I find what % of my interest is the total

Answer 2

A = P(1 + rt)

A = Total Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
r = Rate of Interest per year in decimal
t = Time Period involved in months or years

I believe this

Answer 3

I got the amount, but how would I figure out the percentage