Calculating Item Sales Prices by Project

To calculate the sales price of the item LN:

1. Retrieves the cost price of a budget item from the Cost Price by Customized Item (tipcs3550m000) session.
2. Adds the surcharges to these costs, if you selected the Item Sales Surcharges check box. Also, depending on the value of the Budget Surcharges check box the budget surcharges will be added to the costs.
3. Updates the sales price when the new amount is different to the old amount and not equal to zero.