In Fred Dispense Classic, users had the ability to set a negative value for patient price, which is not permitted in Fred Dispense Plus. Users are interested in having the option to set a negative value as an acceptable patient price in Fred Dispense Plus. They find this feature valuable when they need to issue credits or refunds to patients for various reasons, as it also allows them to maintain a record of these transactions within the patient's profile. Using the "miscellaneous" item in the POS register to give refunds or credits is not an ideal alternative, as it can lead to erroneous entries and makes it more challenging to track the records of such transactions.