9.9% is the change from 525 to 577
Calculation steps:
[( 577 - 525 ) ÷ 525] x 100 = 9.9%
Formula
Percentage change = [(577 - 525) / 525] x 100
Subtract the new number by the original number
577 - 525 = 52
52 ÷ 525 = 0.09904761904761905
0.09904761904761905 x 100 = 9.9%