Go to Custom Report Layouts and export the layout.
Open the RDLC check layout.
Locate the Amount field. In most cases, you should be able to change the amount expression. Remember to TEST with multiple invoices for a vendor to review how the remittance prints on the check stub and how it overflows.
In this example it is located.
Right mouse click the field. And Click Expression.
Change the expression value to use CDEC and the number to 2.