-82.52% is the change from 492 to 86
Calculation steps:
[( 86 - 492 ) ÷ 492] x 100 = -82.52%
Formula
Percentage change = [(86 - 492) / 492] x 100
Subtract the new number by the original number
86 - 492 = -406
-406 ÷ 492 = -0.8252032520325203
-0.8252032520325203 x 100 = -82.52%