Dear Cheera,
In ZH-3 you are reading monthly balance of N900 from SALDO, compare it eith 48 and if HRS is more than or equal with 48 you deduct 48 hours so you have the additional hours in HRS. Then you creating 8520 time type.
In next week you have already worked hours in first week and you are adding working hours day to day to it. So at end of second week you have worked hours for 2 weeks. Is this the problem? if yes you need to keep working hours for the weeks two and maybe a time type to **** the number of weeks.
Regards,
Omid