Calculating difference in data between two slicers and plotting stacked bar chart

I have a table that looks like this:

I would like to get the difference in quantities for each Day and Product_Name between two Locations that are selected in slicers i.e:

Slicer 1 (Location): East

Slicer 2 (Location): West

The output desired would have the values of Slicer 1 minus Slicer 2 (East minus West) like the table below but in the form of a stacked bar chart with Day on the x-axis, Difference in the y-axis and Product_Name as the stacked categories.