Wherever I open a price list in ODOO, if I filter the items group by 'product' , 'vendor' or any other thing, the field 'price' or 'price_unit' would be accumulated automatically by the system.

for example, vendor 'A' has product b($7.00),product c($8.00).If I filter the list grouped by 'vendor', I would get item A, which has a field 'price' displayed as '15'.

I prefer to the field 'price' displayed as blank. How could I solve the problem? thank you.