64.69% is the change from 320 to 527
Calculation steps:
[( 527 - 320 ) ÷ 320] x 100 = 64.69%
Formula
Percentage change = [(527 - 320) / 320] x 100
Subtract the new number by the original number
527 - 320 = 207
207 ÷ 320 = 0.646875
0.646875 x 100 = 64.69%