-91.41% is the change from 326 to 28
Calculation steps:
[( 28 - 326 ) ÷ 326] x 100 = -91.41%
Formula
Percentage change = [(28 - 326) / 326] x 100
Subtract the new number by the original number
28 - 326 = -298
-298 ÷ 326 = -0.9141104294478528
-0.9141104294478528 x 100 = -91.41%