Mismatch of Pre Tax Total in Quote Detail page and Edit page (TaxMode: Individual)

Hello Team

This issue is of vtigercrm version 7.1.0.

I have created one Quotation named "TestQuotes" with one product - selling price:-100 ,discount:-0 ,quantity:-1 tax:- 15 and Net Price :- 115.

Here, TaxMode is individual and as in screenshots, we can clearly see the mismatch in pre tax amount for edit and detail page. Can you please help?

This Edit Page Screen short

This Detail Page Screen short