-82.73% is the change from 498 to 86
Calculation steps:
[( 86 - 498 ) ÷ 498] x 100 = -82.73%
Formula
Percentage change = [(86 - 498) / 498] x 100
Subtract the new number by the original number
86 - 498 = -412
-412 ÷ 498 = -0.8273092369477911
-0.8273092369477911 x 100 = -82.73%