-41.35% is the change from 266 to 156
Calculation steps:
[( 156 - 266 ) ÷ 266] x 100 = -41.35%
Formula
Percentage change = [(156 - 266) / 266] x 100
Subtract the new number by the original number
156 - 266 = -110
-110 ÷ 266 = -0.41353383458646614
-0.41353383458646614 x 100 = -41.35%