Why are my loop calculations doubling?

Question

I need to calculate tuition rates that increase 2% every year, over the course of five years...
I wrote my code:
def main(startyear, endyear):
Tuition=6000

For Year in range (startyear, endyear):
If Year==1:
Tuition=6000
Else:
Tuition=(Tuition+(Tuition*.02))
print(.......)

main(1, 6)

Any idea as to why my calculations keep doubling an extra 2.4% after the first 2 years??

Answer 1

Because it's the way math works. You get 6120 after second loop iteration and then multiply the tuition (which is 6120) by 1.02, so you get 6242.4

Answer 2

Duh! Thank you! Ultimate brain fart