-82.77% is the change from 998 to 172
Calculation steps:
[( 172 - 998 ) ÷ 998] x 100 = -82.77%
Formula
Percentage change = [(172 - 998) / 998] x 100
Subtract the new number by the original number
172 - 998 = -826
-826 ÷ 998 = -0.8276553106212425
-0.8276553106212425 x 100 = -82.77%