Tooltip filtering/highlighting head scratcher

Hi guys,

I'm going to try and explain this best I can. I have a graph that shows export volumes of products we sell. On one chart, I show the total New Zealand export of that product, the total export volume of my company and then select a customer which highlights their portion of volume to my company.

I'd like to add a tooltip to make it easier to view the values but this is where I'm running into a head scratcher. I can display the NZ export number fine, but then when I select the customer it filters both my company number and also their number (obviously). Hopefully the pic helps with context:

If this was a visual on the page I would alter the interactions but given the cards are on a tooltip page I can't think of how to stop our company number being affected?

Any words of wisdom for me?