Need excel like format report to show the difference in cost for each SKU for the dates selected

Hi All, 

I have a requirement where we need a excel like format report where we need to show the difference of cost from one date to another. This date should be handled in the slicer where one date will be base and the other date will be acting as a anchor. Based on the selection of the dates in the slicer , we should see the reslult in the given gdrive link.User only wants to compare the two consecutive months.

link :  https://docs.google.com/spreadsheets/d/1HicELlkaa04ggqqeuyxpReiQpIq0MrXL/edit?usp=sharing&ouid=113338304003727638873&rtpof=true&sd=true