-65.66% is the change from 495 to 170
Calculation steps:
[( 170 - 495 ) ÷ 495] x 100 = -65.66%
Formula
Percentage change = [(170 - 495) / 495] x 100
Subtract the new number by the original number
170 - 495 = -325
-325 ÷ 495 = -0.6565656565656566
-0.6565656565656566 x 100 = -65.66%