-30.77% is the change from 260 to 180
Calculation steps:
[( 180 - 260 ) ÷ 260] x 100 = -30.77%
Formula
Percentage change = [(180 - 260) / 260] x 100
Subtract the new number by the original number
180 - 260 = -80
-80 ÷ 260 = -0.3076923076923077
-0.3076923076923077 x 100 = -30.77%