16.95% is the change from 531 to 621
Calculation steps:
[( 621 - 531 ) ÷ 531] x 100 = 16.95%
Formula
Percentage change = [(621 - 531) / 531] x 100
Subtract the new number by the original number
621 - 531 = 90
90 ÷ 531 = 0.1694915254237288
0.1694915254237288 x 100 = 16.95%