Sum problem in chart

[JuP]

Hello,

I meet a false result when I use sum in a pie chart.
I show the problem in this video:

Sum bug.mp4

(2.26 MiB) Downloaded 3 times

At the begining, as you can see, I have two line Hollow Rectangle Section with a respective total price of 25 and 60. The sum is 85€

When I go to the pie charte I change the mode to count, we see 2 values (ok), the min is 25 (ok) and max 60 (ok). Average 42 (ok) and sum... 170 (nok)

For me it is a bug, there is no reason to obtain that.