66.13% is the change from 313 to 520
Calculation steps:
[( 520 - 313 ) ÷ 313] x 100 = 66.13%
Formula
Percentage change = [(520 - 313) / 313] x 100
Subtract the new number by the original number
520 - 313 = 207
207 ÷ 313 = 0.6613418530351438
0.6613418530351438 x 100 = 66.13%