-45.51% is the change from 156 to 85
Calculation steps:
[( 85 - 156 ) ÷ 156] x 100 = -45.51%
Formula
Percentage change = [(85 - 156) / 156] x 100
Subtract the new number by the original number
85 - 156 = -71
-71 ÷ 156 = -0.4551282051282051
-0.4551282051282051 x 100 = -45.51%