-79.83% is the change from 843 to 170
Calculation steps:
[( 170 - 843 ) ÷ 843] x 100 = -79.83%
Formula
Percentage change = [(170 - 843) / 843] x 100
Subtract the new number by the original number
170 - 843 = -673
-673 ÷ 843 = -0.7983392645314353
-0.7983392645314353 x 100 = -79.83%