15.64% is the change from 422 to 488
Calculation steps:
[( 488 - 422 ) ÷ 422] x 100 = 15.64%
Formula
Percentage change = [(488 - 422) / 422] x 100
Subtract the new number by the original number
488 - 422 = 66
66 ÷ 422 = 0.15639810426540285
0.15639810426540285 x 100 = 15.64%