How to collect 2 one to many relationships to create one running total?

How to collect 2 one to many relationships to create one running total?

References

Reference NO 1

http://stackoverflow.com/questions/15185847/how-to-collect-2-one-to-many-relationships-to-create-one-running-total

Reference NO 2

http://office.microsoft.com/en-us/excel-help/create-a-relationship-between-two-tables-HA102837471.aspx

Reference NO 3

http://kenhamady.com/cru/archives/2401

Reference NO 4

http://www.anchor.com.au/hosting/support/CreatingAQuickMySQLRelationalDatabase

Reference NO 5

http://docs.oracle.com/javaee/5/tutorial/doc/bnbrt.html

Reference NO 6

http://forum.openoffice.org/en/forum/viewtopic.php?f=39&t=55605

Reference NO 7

http://ntssp.blogspot.com/2011/03/creating-running-totals-in-one-to-many.html

Reference NO 8

http://forums.macrumors.com/showthread.php?t=1118365&page=2