15.58% is the change from 597 to 690
Calculation steps:
[( 690 - 597 ) ÷ 597] x 100 = 15.58%
Formula
Percentage change = [(690 - 597) / 597] x 100
Subtract the new number by the original number
690 - 597 = 93
93 ÷ 597 = 0.15577889447236182
0.15577889447236182 x 100 = 15.58%