-17.94% is the change from 998 to 819
Calculation steps:
[( 819 - 998 ) ÷ 998] x 100 = -17.94%
Formula
Percentage change = [(819 - 998) / 998] x 100
Subtract the new number by the original number
819 - 998 = -179
-179 ÷ 998 = -0.17935871743486975
-0.17935871743486975 x 100 = -17.94%