-40.23% is the change from 261 to 156
Calculation steps:
[( 156 - 261 ) ÷ 261] x 100 = -40.23%
Formula
Percentage change = [(156 - 261) / 261] x 100
Subtract the new number by the original number
156 - 261 = -105
-105 ÷ 261 = -0.40229885057471265
-0.40229885057471265 x 100 = -40.23%