32.05% is the change from 621 to 820
Calculation steps:
[( 820 - 621 ) ÷ 621] x 100 = 32.05%
Formula
Percentage change = [(820 - 621) / 621] x 100
Subtract the new number by the original number
820 - 621 = 199
199 ÷ 621 = 0.32045088566827695
0.32045088566827695 x 100 = 32.05%