Solution - Simplification or other simple results

Step  1  :

            2
 Simplify   —
            7

Equation at the end of step  1  :

   73         2
  ——— • (0 -  —)
  100         7

Step  2  :

             73
 Simplify   ———
            100

Equation at the end of step  2  :

   73   -2
  ——— • ——
  100   7 

Step  3  :

Final result :

  -73            
  ——— = -0.20857 
  350