20.88% is the change from 522 to 631
Calculation steps:
[( 631 - 522 ) ÷ 522] x 100 = 20.88%
Formula
Percentage change = [(631 - 522) / 522] x 100
Subtract the new number by the original number
631 - 522 = 109
109 ÷ 522 = 0.20881226053639848
0.20881226053639848 x 100 = 20.88%