employee annual sick leave tracker with hours owing not used
 

I need an employee absence and sick leave tracker with hours owing not used.
I have downloaded the absence tracker and have set it up for the business but
realised it needs to tell me, somehow, the accumulated hours for each
employee. I put in the accrued hours with a minus sign in front i.e - 3.077
for holidays, every payday but there must be an easier way which is accurate.
If anyone has any ideas or a different spreadsheet that could help me, i will
be one very happy camper.

Thanks in advance.