-81.03% is the change from 448 to 85
Calculation steps:
[( 85 - 448 ) ÷ 448] x 100 = -81.03%
Formula
Percentage change = [(85 - 448) / 448] x 100
Subtract the new number by the original number
85 - 448 = -363
-363 ÷ 448 = -0.8102678571428571
-0.8102678571428571 x 100 = -81.03%