-56.51% is the change from 998 to 434
Calculation steps:
[( 434 - 998 ) ÷ 998] x 100 = -56.51%
Formula
Percentage change = [(434 - 998) / 998] x 100
Subtract the new number by the original number
434 - 998 = -564
-564 ÷ 998 = -0.5651302605210421
-0.5651302605210421 x 100 = -56.51%