-25.79% is the change from 318 to 236
Calculation steps:
[( 236 - 318 ) ÷ 318] x 100 = -25.79%
Formula
Percentage change = [(236 - 318) / 318] x 100
Subtract the new number by the original number
236 - 318 = -82
-82 ÷ 318 = -0.2578616352201258
-0.2578616352201258 x 100 = -25.79%