-82.04% is the change from 490 to 88
Calculation steps:
[( 88 - 490 ) ÷ 490] x 100 = -82.04%
Formula
Percentage change = [(88 - 490) / 490] x 100
Subtract the new number by the original number
88 - 490 = -402
-402 ÷ 490 = -0.8204081632653061
-0.8204081632653061 x 100 = -82.04%