Level 1

How to recalculate Federal Tax withholding on a completed payroll for one employee?

I have completed payroll and one of my employees would like to increase her Federal Tax withholding for this pay period.  So I went into the employee record and updated her Federal Tax Withholding.  Now how do I fix her paycheck since payroll is complete?   I have QB Desktop.  I have not done any electronic transfers or written any checks.  So I am thinking it should be fairly easy for QB to recalculate but I cannot figure it out.