In the batch payroll module, I've set up the debit and credit accounts, periods, w/h field and the matching percent.  The system is taking the matching percent, in this case 3%, times the amount the employee had withheld to arrive at the employer matching amount.  It's my understanding that the matching amount in this case should be 3% of gross pay instead of 3% of the employee's contribution amount.  (Monthly pay period)

With the biweekly payrolls, the system does not calculate any employer contribution even though the employee's are contributing more than 3% of their gross pay.