-83.87% is the change from 496 to 80
Calculation steps:
[( 80 - 496 ) ÷ 496] x 100 = -83.87%
Formula
Percentage change = [(80 - 496) / 496] x 100
Subtract the new number by the original number
80 - 496 = -416
-416 ÷ 496 = -0.8387096774193549
-0.8387096774193549 x 100 = -83.87%