30.02% is the change from 623 to 810
Calculation steps:
[( 810 - 623 ) ÷ 623] x 100 = 30.02%
Formula
Percentage change = [(810 - 623) / 623] x 100
Subtract the new number by the original number
810 - 623 = 187
187 ÷ 623 = 0.3001605136436597
0.3001605136436597 x 100 = 30.02%