<p>I am using: Birt 4.4.2, Eclipse 4.4.2, Windows 10 64-bit</p>
<p> </p>
<p>I have created with your DemoDatabase "BIRT Classic Models Sample Database" a Birt Report.</p>
<p>Attached i send you the source of the report.</p>
<p>The structure of the report is:</p>
<p>Group 1: Values of Customer</p>
<p>Group 2: Values of Order</p>
<p>Group 3: Values of OrderDetails</p>
<p> </p>
<p>All went well, there is only one problem:</p>
<p>In Group 3 i want to add a Column wirth an Aggregation PERCENTSUM.</p>
<p>But it is not possible; i get no values.</p>
<p>In Group 2 i can add this Aggregation PERCENTSUM, all is ok.</p>
<p> </p>
<p>I have searched a lot, but i find no result.</p>
<p> </p>
<p>It is very difficult to explain the problem, therefore i send you my report.</p>
<p>In the report the problem is the field: AnteilOrderDetail</p>
<p>It is an Aggregat</p>
