WC Retainage: This Bills Retg %
This field displays the percent that retainage is calculated at for this contract and billing.
If retainage has been calculated for contract items, the field defaults a rate based on the total item retainage amount and the number of items. Otherwise, the default is 0.00. This field may be overridden. Be aware that by entering a value in this field, you will override any rates specified at the contract item level.