56.19% is the change from 525 to 820
Calculation steps:
[( 820 - 525 ) ÷ 525] x 100 = 56.19%
Formula
Percentage change = [(820 - 525) / 525] x 100
Subtract the new number by the original number
820 - 525 = 295
295 ÷ 525 = 0.5619047619047619
0.5619047619047619 x 100 = 56.19%