Master Detail aggregate function

I have a program that I am working on. On the payroll form I have created a master detail relationship. Employees to payroll. I have a drop down data combo to search for the name of the employee. I would like the grid to show the total of Payrate*Hours worked less all the deductions. Deductions are: Deductions MiscDed StateTax FICA FedTax Medical Flat Rate and Hourly are boolean and should be in a check box . I do not know how to get an aggregate total for each row on the grid using the Master Detail relationship. ## Deliverables Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. Complete copyrights to all work purchased. ## Platform vb6 of course :) ## Deadline information Need this asap please!