As the title suggests, I am needing to take the year over year differences from two different workbooks based off of the account number. Both workbooks are formatted exactly the same. Below is a screenshot of the 2018 Data, 2017 Data, and how I want the year-over-year difference to look like. I color coded each amount to show which ones are being compared.
As you can see, not every account is in both 2018 and 2017. Any idea how to do this? 