-82.72% is the change from 492 to 85
Calculation steps:
[( 85 - 492 ) ÷ 492] x 100 = -82.72%
Formula
Percentage change = [(85 - 492) / 492] x 100
Subtract the new number by the original number
85 - 492 = -407
-407 ÷ 492 = -0.8272357723577236
-0.8272357723577236 x 100 = -82.72%