Adding multiple numbers in one cell to give a total in another

Hi all,

I've had a bit of experience with excel doing costing databases etc, but i'm drawing a bit of a blank with what i want to achieve with a new spreadsheet. Basically it's a stock sheet for different components, their batch numbers and quantity per batch. To make it easier on the eye and to see what current levels are like i have stacked multiple batch numbers per item in one cell, as i have with the quantity. What i want to do is be able to add the quantity values from the cell together and output the total into another cell to give an overview of total stock. I have attached (I hope) a section of the list to make it easier to understand my intentions. If anyone has any useful input I would be most grateful.

Lune


Stock list.jpg