-79.72% is the change from 424 to 86
Calculation steps:
[( 86 - 424 ) ÷ 424] x 100 = -79.72%
Formula
Percentage change = [(86 - 424) / 424] x 100
Subtract the new number by the original number
86 - 424 = -338
-338 ÷ 424 = -0.7971698113207547
-0.7971698113207547 x 100 = -79.72%