How I see it you need to put 2, 1 and 6.
The 0.102 = 100% + 2% Surcharge
1 = Absolute surcharge
1.06 = 100% + 6% tax
SOLUTION for SmartEnergy.AT is the screenshot HERE!
Thank you @AkshayR and of course @webwude for the information and the detailed description of the steps.
Iāve had the same issues with SmartEnergy.AT and tried all values from their homepage but without any success.
Yourās screenshot here was the solution, although I donāt understand the shown figures 
Many, many, many thanks @webwude to you for the big effort.
Helped me a lot and is exactly what I was looking for.
But Iām struggling with some details.
I copied all the code into the respective two (current prices, tomorrowās prices) cards in the dashboard and also got the corresponding layout - see screenshots, BUT:
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The marking āNowā - the current price is set back in time for me, approx. 30-45 minutes ā why? - see screenshot
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Prices for tomorrow are displayed in the dashboard (the condition in the card must be deleted) - BUT the prices are not updated for me - see also screenshots
Servus , hast du es inzwischen hin bekommen ?
Hi there, great integration and great sensor!
I have set-up everything and it works great.
I want to add one more thing that I canāt seem to find out how to do this. I saw @mmartin327 also wants to have this info.
Is there a way to check if next day price in the morning has a certain spread to the current evening price?
I managed to do this for the current day by template sensor and current day high and low prices. With this template sensor I decide to charge or not charge my battery.
But I would also like to decide when to discharge the battery in the evening based on the next days price. When the price spread is not large enough, then I donāt want to discharge the battery (I also use solar forecast as well as condition). So when it is not sunny and there is a small price difference I donāt want to dischargeā¦
So how can I get next day high and low price into an entity?