-30.5% is the change from 259 to 180
Calculation steps:
[( 180 - 259 ) ÷ 259] x 100 = -30.5%
Formula
Percentage change = [(180 - 259) / 259] x 100
Subtract the new number by the original number
180 - 259 = -79
-79 ÷ 259 = -0.305019305019305
-0.305019305019305 x 100 = -30.5%