title: Need to find total sales of each date
body: <p>I'm stuck in finding total sales of a day, I need to further find out the % of each product in a particular date.
  for eg: sales of beverages for 2/17/2018</p>
  <p><a href="https://i.stack.imgur.com/9HVUX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9HVUX.png" alt="enter image description here" /></a></p>
  <p>Here I am trying to find the total sales for one particular date :
  I am expecting 922 in the salesperday column.</p>