Cross Site Chart or Graph

I had a list in the root site that Podium Placement. the List have three fields Company,Project and Tender Amount. Company and Project are look Field to another two lists. I can select a project , company and can enter a quote for this combination as tender amount. I need to display these details as graph into the subsite of a project.

I need a graph inside every projects (its a subsite ), which lists the tender amount across company of the current projects. The graph will place inside a subsite of project , that need to be list only that project’s, tender amount. No need of display all company and tender amount another projects. How can resolve this?

I checked this link But haw can I get the current website’s ID (list Item ID) from website properties?