-17.09% is the change from 597 to 495
Calculation steps:
[( 495 - 597 ) ÷ 597] x 100 = -17.09%
Formula
Percentage change = [(495 - 597) / 597] x 100
Subtract the new number by the original number
495 - 597 = -102
-102 ÷ 597 = -0.1708542713567839
-0.1708542713567839 x 100 = -17.09%