23.55% is the change from 620 to 766
Calculation steps:
[( 766 - 620 ) ÷ 620] x 100 = 23.55%
Formula
Percentage change = [(766 - 620) / 620] x 100
Subtract the new number by the original number
766 - 620 = 146
146 ÷ 620 = 0.23548387096774193
0.23548387096774193 x 100 = 23.55%