I may be misunderstanding how that should work, here's what I see:
View attachment 215207
So on the Calendar I see 3.41 cost. The only charge that day was at WORK, and that is set to a cost of Zero, thus I was expected not to see any cost on the calendar for that day?
My home cost is set to 0.09, so I make the 40.22 kWh added 3.62 or, inflating by 91.7% efficiency perhaps? would be 3.92 - I've not managed to get to the 3.95 shown as the "Charge savings"
I expect I've misunderstood or done something daft with my maths
Also:
I have two tagged locations called Home (possibly because you kindly sorted out an issue where my address was not "close" to my actual home location). Anyway, neither of them allow me to set a charging cost on the tagged location - I'm presuming that's because they are labelled "Home" and thus I should set that in CONFIG instead. Just wonder if that might catch some folk out? i.e. they will try to set the Home rate from the Home tagged location, rather than from CONFIG.
EDIT: The "Used 43.8 kWh" x 0.09 comes out at 3.942 which is pretty close to 3.95, so perhaps that is the correct calculation