-54.51% is the change from 998 to 454
Calculation steps:
[( 454 - 998 ) ÷ 998] x 100 = -54.51%
Formula
Percentage change = [(454 - 998) / 998] x 100
Subtract the new number by the original number
454 - 998 = -544
-544 ÷ 998 = -0.5450901803607214
-0.5450901803607214 x 100 = -54.51%