Hello,
I have two regions on my page Inserting region and tabular region where are display items from Insert region. Now i need to calcuate two fields in tabular for in separate page item , and after every insert I want to do that calculation again.

This is the page, I want to calculate red field * orange for every row (ID),it doesn't depend is it checked or no not. but by black ( ID). Problem is that these are displays fields I cant use apex_application.g_f0.. cause are items are dipslay fields. So how can i loop this calculation .
Thanks !!!!