29.97% is the change from 624 to 811
Calculation steps:
[( 811 - 624 ) ÷ 624] x 100 = 29.97%
Formula
Percentage change = [(811 - 624) / 624] x 100
Subtract the new number by the original number
811 - 624 = 187
187 ÷ 624 = 0.29967948717948717
0.29967948717948717 x 100 = 29.97%