-81.47% is the change from 448 to 83
Calculation steps:
[( 83 - 448 ) ÷ 448] x 100 = -81.47%
Formula
Percentage change = [(83 - 448) / 448] x 100
Subtract the new number by the original number
83 - 448 = -365
-365 ÷ 448 = -0.8147321428571429
-0.8147321428571429 x 100 = -81.47%