-22.02% is the change from 109 to 85
Calculation steps:
[( 85 - 109 ) ÷ 109] x 100 = -22.02%
Formula
Percentage change = [(85 - 109) / 109] x 100
Subtract the new number by the original number
85 - 109 = -24
-24 ÷ 109 = -0.22018348623853212
-0.22018348623853212 x 100 = -22.02%