math - python simple percentage calculation returning 0

Okay this seems to be really trivial but I'm not able to figure this out.
I need to do a basic percentage calculation.
This is my code:

corr = 205
score =  100 * (corr / 225 )
print score 

But the result is 0.
How come? There aren't a whole of different ways to write this, but I did shuffle this around and tried adding int()s and float()s, but the results was always 0.

Answer

Adding on to @Germano's answer,

Python2.7

>>> corr = 205
>>> score = 100 * (corr / 225)
>>> print score
0

Python3 fixes the automatic casting.

>>> corr = 205
>>> score = 100 * (corr / 225)
>>> print(score)
91.11111111111111

See How can I force division to be floating point? Division keeps rounding down to 0