-74.63% is the change from 335 to 85
Calculation steps:
[( 85 - 335 ) ÷ 335] x 100 = -74.63%
Formula
Percentage change = [(85 - 335) / 335] x 100
Subtract the new number by the original number
85 - 335 = -250
-250 ÷ 335 = -0.746268656716418
-0.746268656716418 x 100 = -74.63%