-14.66% is the change from 580 to 495
Calculation steps:
[( 495 - 580 ) ÷ 580] x 100 = -14.66%
Formula
Percentage change = [(495 - 580) / 580] x 100
Subtract the new number by the original number
495 - 580 = -85
-85 ÷ 580 = -0.14655172413793102
-0.14655172413793102 x 100 = -14.66%