Energy price calculation way off

I opened a thread because of this before, but it just doesn’t make any sense to me. I am using ESPhome and SML to get data from my power meters. I have set these prices: Energy I use from the grid: 45 ct/kWh. Energy I return to the grid: 28 ct/kWh.
The prices I get in the Energy panel are not only way off, but also not even consistent. Does anyone know why this could be? I am running HAos on a RPi 3b+ and didn’t change any database settings.



Thanks