6.53% is the change from 597 to 636
Calculation steps:
[( 636 - 597 ) ÷ 597] x 100 = 6.53%
Formula
Percentage change = [(636 - 597) / 597] x 100
Subtract the new number by the original number
636 - 597 = 39
39 ÷ 597 = 0.06532663316582915
0.06532663316582915 x 100 = 6.53%