23.35% is the change from 621 to 766
Calculation steps:
[( 766 - 621 ) ÷ 621] x 100 = 23.35%
Formula
Percentage change = [(766 - 621) / 621] x 100
Subtract the new number by the original number
766 - 621 = 145
145 ÷ 621 = 0.23349436392914655
0.23349436392914655 x 100 = 23.35%