Custom Formulation in Dashboard

Custom Formulation in Dashboard

Hi, 

In Dashboards when I am adding I can't use any special formulas. like sum(tables)/sum(Tabley) which is very critical. Sometimes we need such calculations to see the average kg or price. 

For instance, when I buy any item for multiple times , I have total kg column and total amount column. In the dashboard I want to see the average price. How can I make it? 

Thanks,