-99.78% is the change from 448 to 1
Calculation steps:
[( 1 - 448 ) ÷ 448] x 100 = -99.78%
Formula
Percentage change = [(1 - 448) / 448] x 100
Subtract the new number by the original number
1 - 448 = -447
-447 ÷ 448 = -0.9977678571428571
-0.9977678571428571 x 100 = -99.78%