31.19% is the change from 622 to 816
Calculation steps:
[( 816 - 622 ) ÷ 622] x 100 = 31.19%
Formula
Percentage change = [(816 - 622) / 622] x 100
Subtract the new number by the original number
816 - 622 = 194
194 ÷ 622 = 0.31189710610932475
0.31189710610932475 x 100 = 31.19%