-20.86% is the change from 326 to 258
Calculation steps:
[( 258 - 326 ) ÷ 326] x 100 = -20.86%
Formula
Percentage change = [(258 - 326) / 326] x 100
Subtract the new number by the original number
258 - 326 = -68
-68 ÷ 326 = -0.2085889570552147
-0.2085889570552147 x 100 = -20.86%