-23.78% is the change from 143 to 109
Calculation steps:
[( 109 - 143 ) ÷ 143] x 100 = -23.78%
Formula
Percentage change = [(109 - 143) / 143] x 100
Subtract the new number by the original number
109 - 143 = -34
-34 ÷ 143 = -0.23776223776223776
-0.23776223776223776 x 100 = -23.78%