-47.69% is the change from 824 to 431
Calculation steps:
[( 431 - 824 ) ÷ 824] x 100 = -47.69%
Formula
Percentage change = [(431 - 824) / 824] x 100
Subtract the new number by the original number
431 - 824 = -393
-393 ÷ 824 = -0.47694174757281554
-0.47694174757281554 x 100 = -47.69%