-93.05% is the change from 259 to 18
Calculation steps:
[( 18 - 259 ) ÷ 259] x 100 = -93.05%
Formula
Percentage change = [(18 - 259) / 259] x 100
Subtract the new number by the original number
18 - 259 = -241
-241 ÷ 259 = -0.9305019305019305
-0.9305019305019305 x 100 = -93.05%