-9.38% is the change from 448 to 406
Calculation steps:
[( 406 - 448 ) ÷ 448] x 100 = -9.38%
Formula
Percentage change = [(406 - 448) / 448] x 100
Subtract the new number by the original number
406 - 448 = -42
-42 ÷ 448 = -0.09375
-0.09375 x 100 = -9.38%