Formula to count "absence with permission"

[leprince2007]

Hello everybody,
Can you help me to solve my problem,please?
-The file in attachment contains dates of leaves for employees
-Dates are written in "00" format
-"Absence with permission" is allowed only if emplpyee`s annual balance is zero
My question:I need a formula to count "absence with permission" if the employees`s annual balance "until current month" is more than zero.Because it is a mistake if the employee took absence before finishing his annual balance.

Note:I mentioned "annual balance until current month" not "the final annual balance"
please help me