-50.22% is the change from 448 to 223
Calculation steps:
[( 223 - 448 ) ÷ 448] x 100 = -50.22%
Formula
Percentage change = [(223 - 448) / 448] x 100
Subtract the new number by the original number
223 - 448 = -225
-225 ÷ 448 = -0.5022321428571429
-0.5022321428571429 x 100 = -50.22%