15.61% is the change from 538 to 622
Calculation steps:
[( 622 - 538 ) ÷ 538] x 100 = 15.61%
Formula
Percentage change = [(622 - 538) / 538] x 100
Subtract the new number by the original number
622 - 538 = 84
84 ÷ 538 = 0.15613382899628253
0.15613382899628253 x 100 = 15.61%