-40.28% is the change from 998 to 596
Calculation steps:
[( 596 - 998 ) ÷ 998] x 100 = -40.28%
Formula
Percentage change = [(596 - 998) / 998] x 100
Subtract the new number by the original number
596 - 998 = -402
-402 ÷ 998 = -0.4028056112224449
-0.4028056112224449 x 100 = -40.28%