I would like to create a field for Total Weight in my View.  This would calculate all the Weights chosen over a period of time from the Weight Dropdown by user in my form

 

Example: 

 

User: Chris

 

Weight: 3

Weight : 5

 

And then calculate the total in a Total Field in my view

 

Total Weight:8

 

Does anyone know how to do this?

 

Thanks!!