Resource Assignment Profile ( Total Quantity different in hour unit profile and Day unit profile )

Dear all,

Could you please advice me as I have been facing the problem in Primavera P6 Ver.8.2 as pre below.

In User Preference field, when I selected unit of time format as Hour, total quantity of manhour is tally with individual resource quantity. see below picture:

But When I selected unit of time format as Day, total quantity of Day does not tally with individual resource quantity. Please see below:

This is in same project and I just only selected unit format. total quantity is wrong.

Please advise me.

Thanks You;

Yin Htwe