GST tax applying issue

If I’m creating quotation, and quotation has 2 types of item 18% GST and 28% GST, but when I’m applying tax it is applying on net tax equally. It doesn’t differentiate GST. How can I do it. please guide me.

If there are items with multiple tax slabs, better to setup itemwise taxation:

https://docs.erpnext.com/docs/v13/user/manual/en/accounts/item-tax-template

okay thank you…