Retainage Amount
From Sage 300 ERP
Retainage Amount
To calculate the retainage amount, the program multiples the document amount (or the document total, if you include taxes in retainage) by the retainage percentage. You can enter a new retainage amount, if necessary. When you enter an amount to replace a calculated amount, the program recalculates the retainage percentage.
The retainage amount is subtracted from the document amount (or the document total) to calculate the amount due.