The nominal figure for the discount price cannot be more than 7 or more digits

Please help me.

Why the nominal discount cant be more than Rp. 1.000.000,00 or high, but the limit is Rp999.999,99.

my curency is Rp from indonesian country.
Thank you.


@david can you please advise?

The Problem is Solving.
I am change the type table database in table invoices coloum discount type (double 8,2) modify to (double 10,2).