-81.6% is the change from 462 to 85
Calculation steps:
[( 85 - 462 ) ÷ 462] x 100 = -81.6%
Formula
Percentage change = [(85 - 462) / 462] x 100
Subtract the new number by the original number
85 - 462 = -377
-377 ÷ 462 = -0.816017316017316
-0.816017316017316 x 100 = -81.6%