Price Breakup Tab values

[saaraacasm]

So for a store whose products and prices are already uploaded, I wanted to add the price break up tab.I added it and now the values on the price break up tab are different for so many products and needs to be added from a spreadsheet or csv file.How do I do that only for the price break up tab without disturbing the products and their prices?

Look at the picture I attached, I have made a similar tab but the right side column that is the values for the price break up how do I import that for so many products?

[saaraacasm]

I would like to be guided more regarding this, please help me through the
process, is it possible to connect over a gmeet?