Question: Is there a way to Round Up to the nearest whole number for the selling price ?
Answer: The only place the decimal places could be controlled is within the Quantity Parameters in the product engine itself i.e up to 4 decimal places.
Path: PJM Admin > Settings > Product Engines > Edit Product Engine > Quantity Parameter > Allow decimal places
When we talk about the selling price on the calculate Job/Estimate page it is currently up to 2 decimal places and cannot be rounded off before the decimal.
If you want to make the adjustment in the selling price then suggestion for you is to alter the Pre-tax & Tax price on Calculate Job/Estimate Page.