-54.05% is the change from 185 to 85
Calculation steps:
[( 85 - 185 ) ÷ 185] x 100 = -54.05%
Formula
Percentage change = [(85 - 185) / 185] x 100
Subtract the new number by the original number
85 - 185 = -100
-100 ÷ 185 = -0.5405405405405406
-0.5405405405405406 x 100 = -54.05%