64.57% is the change from 525 to 864
Calculation steps:
[( 864 - 525 ) ÷ 525] x 100 = 64.57%
Formula
Percentage change = [(864 - 525) / 525] x 100
Subtract the new number by the original number
864 - 525 = 339
339 ÷ 525 = 0.6457142857142857
0.6457142857142857 x 100 = 64.57%