-81.48% is the change from 459 to 85
Calculation steps:
[( 85 - 459 ) ÷ 459] x 100 = -81.48%
Formula
Percentage change = [(85 - 459) / 459] x 100
Subtract the new number by the original number
85 - 459 = -374
-374 ÷ 459 = -0.8148148148148148
-0.8148148148148148 x 100 = -81.48%