Zeros After Decimal Truncated in DD Item PAAP

Has anyone encountered this and what did you do?  I am creating a file to send to a Canadian bank.  All numeric are converted to string.  Each cheque amount is converted correctly.  I am accumulating each cheque amount to a running total that is output to a batch total.  I am using data dictionary item PAAP.   I've run this through debug and I can see that as the cheque amounts are being accumulated, if the amount ends in a zero, the zeros are being truncated.  For example, cheque for 3,000,000.00 and 4,000,000.00.  The batch total is 7,000,000.

Thanks in advance for your help!