-13.39% is the change from 448 to 388
Calculation steps:
[( 388 - 448 ) ÷ 448] x 100 = -13.39%
Formula
Percentage change = [(388 - 448) / 448] x 100
Subtract the new number by the original number
388 - 448 = -60
-60 ÷ 448 = -0.13392857142857142
-0.13392857142857142 x 100 = -13.39%