-76.12% is the change from 335 to 80
Calculation steps:
[( 80 - 335 ) ÷ 335] x 100 = -76.12%
Formula
Percentage change = [(80 - 335) / 335] x 100
Subtract the new number by the original number
80 - 335 = -255
-255 ÷ 335 = -0.7611940298507462
-0.7611940298507462 x 100 = -76.12%