In my understanding, 13th month pay is 1/12 of the basic salary the employee received within a year.
So if 25K/month ang basic, 25K ang 13th month pay.
But, you said, the deduction was caused by absences? I think that is possible...
For instance, ning-absent siya bisan wala xay leave credits, or ni-exceed na xa sa leave credits.
Example naay 25working days in a month, pero 23days lg xa nisulod, so around 23K lg iya sweldo kay unpaid (no leave credits) mn xa.
If she does that every month then you compute the basic pay she earned for one whole year, it would be less than (25K*12). So, less than 25K iya 13th month.
Just my two cents!
Anybody please correct me if I'm wrong.
