24.57% is the change from 521 to 649
Calculation steps:
[( 649 - 521 ) ÷ 521] x 100 = 24.57%
Formula
Percentage change = [(649 - 521) / 521] x 100
Subtract the new number by the original number
649 - 521 = 128
128 ÷ 521 = 0.2456813819577735
0.2456813819577735 x 100 = 24.57%