-10.26% is the change from 156 to 140
Calculation steps:
[( 140 - 156 ) ÷ 156] x 100 = -10.26%
Formula
Percentage change = [(140 - 156) / 156] x 100
Subtract the new number by the original number
140 - 156 = -16
-16 ÷ 156 = -0.10256410256410256
-0.10256410256410256 x 100 = -10.26%