-84.97% is the change from 499 to 75
Calculation steps:
[( 75 - 499 ) ÷ 499] x 100 = -84.97%
Formula
Percentage change = [(75 - 499) / 499] x 100
Subtract the new number by the original number
75 - 499 = -424
-424 ÷ 499 = -0.8496993987975952
-0.8496993987975952 x 100 = -84.97%