Excel help need for comparison
I have two excel work sheet which contain sales amount of different customers. First sheet include customer names and sales amounts of a month in two columns.
Second sheet include the customer and sales amounts which is relevant to next month. I want sales amount of each customer of the previous month to extract to the next month sheet in the next column. But the new month include some of the customers from the previous month and other new customers.
How can I do this quickly by using excel function?








