-14.55% is the change from 495 to 423
Calculation steps:
[( 423 - 495 ) ÷ 495] x 100 = -14.55%
Formula
Percentage change = [(423 - 495) / 495] x 100
Subtract the new number by the original number
423 - 495 = -72
-72 ÷ 495 = -0.14545454545454545
-0.14545454545454545 x 100 = -14.55%