Energy Consumption Cost is calculated incorrectly

I am using a Tibber Pulse to track my energy flowing to and from the power grid.
I have set up the Energy Dashboard as below:

I have checked the entities historical data and they are spot on to what my Tibber app state that I have consumed.
I.e. the historical numbers for both entities are correct.

However, in the Energy Dashboard there seems to be a calculation of the price rather than actually using my entity which already tracks the total costs.
I even get negative values in the dashboard even though I have not sent anything back to the power grid.

Am I simply using the wrong entities for the dashboard? If so, I have actually tested with most variants I could think of using the entities I have from the Tibber integration.
Or do I need to create a custom entity for calculating the cost in a way that can actually be used in the dashboard?

Thanks.