-84.37% is the change from 998 to 156
Calculation steps:
[( 156 - 998 ) ÷ 998] x 100 = -84.37%
Formula
Percentage change = [(156 - 998) / 998] x 100
Subtract the new number by the original number
156 - 998 = -842
-842 ÷ 998 = -0.843687374749499
-0.843687374749499 x 100 = -84.37%