31.73% is the change from 624 to 822
Calculation steps:
[( 822 - 624 ) ÷ 624] x 100 = 31.73%
Formula
Percentage change = [(822 - 624) / 624] x 100
Subtract the new number by the original number
822 - 624 = 198
198 ÷ 624 = 0.3173076923076923
0.3173076923076923 x 100 = 31.73%