29.55% is the change from 538 to 697
Calculation steps:
[( 697 - 538 ) ÷ 538] x 100 = 29.55%
Formula
Percentage change = [(697 - 538) / 538] x 100
Subtract the new number by the original number
697 - 538 = 159
159 ÷ 538 = 0.2955390334572491
0.2955390334572491 x 100 = 29.55%