-81.44% is the change from 458 to 85
Calculation steps:
[( 85 - 458 ) ÷ 458] x 100 = -81.44%
Formula
Percentage change = [(85 - 458) / 458] x 100
Subtract the new number by the original number
85 - 458 = -373
-373 ÷ 458 = -0.8144104803493449
-0.8144104803493449 x 100 = -81.44%