-80.36% is the change from 499 to 98
Calculation steps:
[( 98 - 499 ) ÷ 499] x 100 = -80.36%
Formula
Percentage change = [(98 - 499) / 499] x 100
Subtract the new number by the original number
98 - 499 = -401
-401 ÷ 499 = -0.8036072144288577
-0.8036072144288577 x 100 = -80.36%