-27.9% is the change from 448 to 323
Calculation steps:
[( 323 - 448 ) ÷ 448] x 100 = -27.9%
Formula
Percentage change = [(323 - 448) / 448] x 100
Subtract the new number by the original number
323 - 448 = -125
-125 ÷ 448 = -0.27901785714285715
-0.27901785714285715 x 100 = -27.9%