-52.25% is the change from 178 to 85
Calculation steps:
[( 85 - 178 ) ÷ 178] x 100 = -52.25%
Formula
Percentage change = [(85 - 178) / 178] x 100
Subtract the new number by the original number
85 - 178 = -93
-93 ÷ 178 = -0.5224719101123596
-0.5224719101123596 x 100 = -52.25%