64.54% is the change from 313 to 515
Calculation steps:
[( 515 - 313 ) ÷ 313] x 100 = 64.54%
Formula
Percentage change = [(515 - 313) / 313] x 100
Subtract the new number by the original number
515 - 313 = 202
202 ÷ 313 = 0.645367412140575
0.645367412140575 x 100 = 64.54%