Here is the link to the CA PanAudit documentation/manuals for you:
Please see page 76 of the Macro Reference Guide for the APR macro documentation. This macro can handle interest rates, but not negative interest rates.
The field defined which contains the interest rate is defined as:
PERCRATE 1 2 N
In CA Easytrieve, for a field to be possibly be negative, it must have decimal places. If a field that must have decimal places does not have decimal places, then you have to tell it 0 decimal places, and you get a signed field.
So, the way this macro is delivered and the way that we would support this macro, it is not delivered with functionality to handle a negative interest rate field.
The documentation also states that it may not be 0 as well.