-56.81% is the change from 998 to 431
Calculation steps:
[( 431 - 998 ) ÷ 998] x 100 = -56.81%
Formula
Percentage change = [(431 - 998) / 998] x 100
Subtract the new number by the original number
431 - 998 = -567
-567 ÷ 998 = -0.5681362725450901
-0.5681362725450901 x 100 = -56.81%