Bonn datasets are not shown correctly in OBEU Viewer

[HimmelStein]

datasets: http://apps.openbudgets.eu/viewer/bonn-budget-2019__40559?lang=en

1. percentages of data sections are larger than 100 %
2. there are minus data in Bonn dataset, how are these data processed?
3. The Pie chart view of the dataset consists of only one data section, with some minus value.

[larjohn]

It seems that this happens due to the negative amounts. As negative percentages are meaningless in Mathematics (unless you are talking about a decrease in something), a questionable solution would be to use the absolute value of the amounts.

I don't know if this would be a correct solution, but it is not followed in the original OpenSpending API either:

https://openspending.org/viewer/d8914bfc3c1b6563fe9f4ac671809a61:bonn_2017_iais_random_test?measure=%22Plan2017.sum%22&groups%5B%5D=%22administrative_classification_2.ProfitCenter%22&order=%22Plan2017.sum%7Cdesc%22&visualizations%5B%5D=%22Treemap%22&lang=en