How can I change the Unit Price on an issued PO?

Provided the PO has NOT been shipped:

1. PO Menu (select the PO #)
2. PO Change
3. Select the Line Number you need to change
4. Select the price and Payment Terms Tab
5. Enter the correct price in the Price field
6. This will update all the shipment prices for the line
7. Update
8. Type a comment to explain the price was updated and why
9. Done to exit