-48.48% is the change from 823 to 424
Calculation steps:
[( 424 - 823 ) ÷ 823] x 100 = -48.48%
Formula
Percentage change = [(424 - 823) / 823] x 100
Subtract the new number by the original number
424 - 823 = -399
-399 ÷ 823 = -0.4848116646415553
-0.4848116646415553 x 100 = -48.48%