-24.39% is the change from 328 to 248
Calculation steps:
[( 248 - 328 ) ÷ 328] x 100 = -24.39%
Formula
Percentage change = [(248 - 328) / 328] x 100
Subtract the new number by the original number
248 - 328 = -80
-80 ÷ 328 = -0.24390243902439024
-0.24390243902439024 x 100 = -24.39%