ADF Bar Graph Series Rollover Hint : show 3.000 and what I want is 3.

Question

I've got an ADF bar chart(JDeveloper 11.1.2.1.0), which it always show 3.000 and what I want is 3.
My bar code as followed:
<dvt:barGraph id="graph2" value="#{bindings.EmployeeVO2.graphModel}"
subType="BAR_VERT_CLUST" animationOnDisplay="auto" threeDEffect="true"
seriesRolloverBehavior="RB_HIGHLIGHT" partialTriggers="::graph1"
dynamicResize="DYNAMIC_SIZE" inlineStyle="vertical-align:baseline;">
<dvt:background>
<dvt:specialEffects/>
</dvt:background>
<dvt:graphPlotArea/>
<dvt:seriesSet>
<dvt:series/>
</dvt:seriesSet>
<dvt:o1Axis/>
<dvt:y1Axis/>
<dvt:legendArea automaticPlacement="AP_NEVER"/>
<dvt:y1TickLabel scaling="none" autoPrecision="off"/>
<dvt:markerText>
<dvt:stockVolumeFormat scaling="none" autoPrecision="off">
<af:convertNumber type="currency"/>
</dvt:stockVolumeFormat>
<dvt:x1Format scaling="none" autoPrecision="off">
<af:convertNumber type="currency"/>
</dvt:x1Format>
<dvt:y1Format scaling="none" autoPrecision="off">
<af:convertNumber maxIntegerDigits="5" minFractionDigits="0"
maxFractionDigits="0" minIntegerDigits="1"/>
</dvt:y1Format>
<dvt:zFormat scaling="none" autoPrecision="off">
<af:convertNumber/>
</dvt:zFormat>
</dvt:markerText>
</dvt:barGraph>

Answer 1

Thanks all. The pie chart is pretty right already; I've used the sliceLabel and numberFormat to produce something that's pretty close as mentioned earlier:
<dvt:sliceLabel>
<dvt:graphFont color="#ffffff"/>
<dvt:numberFormat
scaleFactor="SCALEFACTOR_NONE"
numberType="#{AdminCaseload.chartOptionAmountTypeInt}"/>
</dvt:sliceLabel>
... but by using the managed bean to set the numberType to NUMTYPE_CURRENCY when $$ are charted, the rollover hint now displays as I want with the $, but the LD_PERCENT (default) slice labels over the chart are now displaying as $20% which seems a bit crazy. How can I show the currency symbol against the value in the rollover hint, without it appearing alongside the LD_PERCENT slice label in the chart?
On the bar charts, what I need to be able to do is find an sliceLabel equivalent tag location for the numberFormat. You'd think it would be the dvt:y1Axis, given that it doesn't want to let you insert a numberFormat inside either the seriesSet or series tags. How do we control formatting of the value rollover hints on a bar chart ?
Thanks in advance.