Compare 4 columns & find dissimilar

[Bvclsaaal]

I have 2 spreadsheets with 2 columns in each that I need to compare. Sheet A has a part and a price column, as does Sheet B. I need to compare the part column in A to B and then the price column in A to B and if the price of the part in A is different than the price of the part in B, I need to calculate the difference in a separate column. Can anyone help?

 

[XLPadawan]

Upload spreadsheets A & B and I'll do it. I'd rather not have to spend more time setting up the problem than it'll take me to solve it. I've spent most of my day creating sample data and using it to solve problems that have been posed. I could have helped several more people if everyone had uploaded sample files with sample data. Not only that, but it makes the problem a lot easier to understand.
Thanks!