30.37% is the change from 629 to 820
Calculation steps:
[( 820 - 629 ) ÷ 629] x 100 = 30.37%
Formula
Percentage change = [(820 - 629) / 629] x 100
Subtract the new number by the original number
820 - 629 = 191
191 ÷ 629 = 0.3036565977742448
0.3036565977742448 x 100 = 30.37%