-13.23% is the change from 597 to 518
Calculation steps:
[( 518 - 597 ) ÷ 597] x 100 = -13.23%
Formula
Percentage change = [(518 - 597) / 597] x 100
Subtract the new number by the original number
518 - 597 = -79
-79 ÷ 597 = -0.1323283082077052
-0.1323283082077052 x 100 = -13.23%