21.33% is the change from 422 to 512
Calculation steps:
[( 512 - 422 ) ÷ 422] x 100 = 21.33%
Formula
Percentage change = [(512 - 422) / 422] x 100
Subtract the new number by the original number
512 - 422 = 90
90 ÷ 422 = 0.2132701421800948
0.2132701421800948 x 100 = 21.33%