FYI I tried things differently and just kept AMOUNT1 to 90% but then created a second data record where AMOUNT1 was 10% for the same quarter. Removed quarter constraint.. still just one chunk that reads 100%.
You are adding the attribute-values of on object to the piechart-setting. Instead, the pie-chart wants you to add the attribute of the entity to the piechart-setting.
Btw. are you using the Mendix pie-chart?
If you have a entity like this:
and the pie chart settings looks like this:
Then the piechart will look like this: