Where do you look to find the query that a page uses to populate it's data (e.g. the Customers or Items list pages)?
you can go in blue Button on RTC then click on Help option then click on about this page . it's simple then you can see particular page related with which source table. i also send screen shot. please find out..
Navigate to 'About this page' from Help by clicking on the blue button at the top left of a page.
The below screenshot shows that source table for your Item card page is the Item table which is table no 27.