33.6% is the change from 622 to 831
Calculation steps:
[( 831 - 622 ) ÷ 622] x 100 = 33.6%
Formula
Percentage change = [(831 - 622) / 622] x 100
Subtract the new number by the original number
831 - 622 = 209
209 ÷ 622 = 0.3360128617363344
0.3360128617363344 x 100 = 33.6%