22.88% is the change from 424 to 521
Calculation steps:
[( 521 - 424 ) ÷ 424] x 100 = 22.88%
Formula
Percentage change = [(521 - 424) / 424] x 100
Subtract the new number by the original number
521 - 424 = 97
97 ÷ 424 = 0.22877358490566038
0.22877358490566038 x 100 = 22.88%