-27.74% is the change from 447 to 323
Calculation steps:
[( 323 - 447 ) ÷ 447] x 100 = -27.74%
Formula
Percentage change = [(323 - 447) / 447] x 100
Subtract the new number by the original number
323 - 447 = -124
-124 ÷ 447 = -0.27740492170022374
-0.27740492170022374 x 100 = -27.74%