-82.97% is the change from 998 to 170
Calculation steps:
[( 170 - 998 ) ÷ 998] x 100 = -82.97%
Formula
Percentage change = [(170 - 998) / 998] x 100
Subtract the new number by the original number
170 - 998 = -828
-828 ÷ 998 = -0.8296593186372746
-0.8296593186372746 x 100 = -82.97%