To change the default unit price of an item:
In the left Navigational Column, click Sales tab and then click Quotes.
In the Quotes page, click New Quote.
Note: You can also change the unit price of items in an existing quote.
Select the template for the new quote from the Choose Template drop-down menu.
Add item(s) in the quote.
For more information on adding items in a quote, refer to Creating Quotes.
In the added items table under Item, edit the Unit Price entry to change the price of the item.
Click the Save button. The unit price of the item is updated.