-82.72% is the change from 486 to 84
Calculation steps:
[( 84 - 486 ) ÷ 486] x 100 = -82.72%
Formula
Percentage change = [(84 - 486) / 486] x 100
Subtract the new number by the original number
84 - 486 = -402
-402 ÷ 486 = -0.8271604938271605
-0.8271604938271605 x 100 = -82.72%