-98.59% is the change from 495 to 7
Calculation steps:
[( 7 - 495 ) ÷ 495] x 100 = -98.59%
Formula
Percentage change = [(7 - 495) / 495] x 100
Subtract the new number by the original number
7 - 495 = -488
-488 ÷ 495 = -0.9858585858585859
-0.9858585858585859 x 100 = -98.59%