30.29% is the change from 624 to 813
Calculation steps:
[( 813 - 624 ) ÷ 624] x 100 = 30.29%
Formula
Percentage change = [(813 - 624) / 624] x 100
Subtract the new number by the original number
813 - 624 = 189
189 ÷ 624 = 0.30288461538461536
0.30288461538461536 x 100 = 30.29%