To achieve the above alignment, simply enclosed the component inside a panelGrid as follows:
<f:facet name="footer">
<h:panelGrid columns="1" id="pg1" style="text-align:right;" width="100%">
<af:outputText value="#{yourvaluebindinghere}"
id="ot8">
<af:convertNumber type="currency" currencySymbol=" "/>
</af:outputText>
</h:panelGrid>
</f:facet>
Cheers!
