63.24% is the change from 525 to 857
Calculation steps:
[( 857 - 525 ) ÷ 525] x 100 = 63.24%
Formula
Percentage change = [(857 - 525) / 525] x 100
Subtract the new number by the original number
857 - 525 = 332
332 ÷ 525 = 0.6323809523809524
0.6323809523809524 x 100 = 63.24%