-81.73% is the change from 843 to 154
Calculation steps:
[( 154 - 843 ) ÷ 843] x 100 = -81.73%
Formula
Percentage change = [(154 - 843) / 843] x 100
Subtract the new number by the original number
154 - 843 = -689
-689 ÷ 843 = -0.8173190984578885
-0.8173190984578885 x 100 = -81.73%