-48.54% is the change from 824 to 424
Calculation steps:
[( 424 - 824 ) ÷ 824] x 100 = -48.54%
Formula
Percentage change = [(424 - 824) / 824] x 100
Subtract the new number by the original number
424 - 824 = -400
-400 ÷ 824 = -0.4854368932038835
-0.4854368932038835 x 100 = -48.54%