33.01% is the change from 624 to 830
Calculation steps:
[( 830 - 624 ) ÷ 624] x 100 = 33.01%
Formula
Percentage change = [(830 - 624) / 624] x 100
Subtract the new number by the original number
830 - 624 = 206
206 ÷ 624 = 0.3301282051282051
0.3301282051282051 x 100 = 33.01%