Deduct Partial Vacation Hours Taken from a Date or Date Range

[Kimston]

Before anything else, I want to thank everyone who contributes to Excelforum.com, especially those who help me on a daily basis. I’ve created an excel file where I can track vacation days or vacation hours taken by an employee. However, I’d like to know if there is a way to deduct partial hours taken by an employee from a specific date or date range excluding weekends and holidays. For instance an employee may opt to take 4 hours of vacation instead of the 8 hours. In the Accrual Balance and Vacation Records Excel file, there is a tab named “Vacation_Records” in which contains a column named “HoursTaken”. I'm able to count days taken by an employee from a date or date range excluding weekends and holidays, but is there a formula to simply deduct partial hours?
Again thank you very much for your time and dedication.