64% is the change from 525 to 861
Calculation steps:
[( 861 - 525 ) ÷ 525] x 100 = 64%
Formula
Percentage change = [(861 - 525) / 525] x 100
Subtract the new number by the original number
861 - 525 = 336
336 ÷ 525 = 0.64
0.64 x 100 = 64%
Example