-29.69% is the change from 448 to 315
Calculation steps:
[( 315 - 448 ) ÷ 448] x 100 = -29.69%
Formula
Percentage change = [(315 - 448) / 448] x 100
Subtract the new number by the original number
315 - 448 = -133
-133 ÷ 448 = -0.296875
-0.296875 x 100 = -29.69%