-42.63% is the change from 190 to 109
Calculation steps:
[( 109 - 190 ) ÷ 190] x 100 = -42.63%
Formula
Percentage change = [(109 - 190) / 190] x 100
Subtract the new number by the original number
109 - 190 = -81
-81 ÷ 190 = -0.4263157894736842
-0.4263157894736842 x 100 = -42.63%