-84.27% is the change from 998 to 157
Calculation steps:
[( 157 - 998 ) ÷ 998] x 100 = -84.27%
Formula
Percentage change = [(157 - 998) / 998] x 100
Subtract the new number by the original number
157 - 998 = -841
-841 ÷ 998 = -0.842685370741483
-0.842685370741483 x 100 = -84.27%