14.68% is the change from 538 to 617
Calculation steps:
[( 617 - 538 ) ÷ 538] x 100 = 14.68%
Formula
Percentage change = [(617 - 538) / 538] x 100
Subtract the new number by the original number
617 - 538 = 79
79 ÷ 538 = 0.14684014869888476
0.14684014869888476 x 100 = 14.68%