If a value is equal, populate the associate value

Dear Friends,

Happy New Year!!

I newly started to learning Excel VBA, so just want to know the resolution for the following.

I have attached an excel sheet with data. The objective is comparison between current stock and customer order. I have written code to collect the data if the value present in customer order and not present in current stock. So the code will bring the data which is there in column A and not there in B. But the prob here is I am not sure how to write the code to get the rest of the values which is high lighted on the excel sheet.

Please get back to me if you need any clarification. Request you to help me out from the same.

Thanks,
Sasti