-54.91% is the change from 998 to 450
Calculation steps:
[( 450 - 998 ) ÷ 998] x 100 = -54.91%
Formula
Percentage change = [(450 - 998) / 998] x 100
Subtract the new number by the original number
450 - 998 = -548
-548 ÷ 998 = -0.5490981963927856
-0.5490981963927856 x 100 = -54.91%