RadCartesianChart XAxis Scale and Major Unit Issue

[Jonathan Barber]

I am using the RadCartesianChart to show a bar chart, and the X-Axis is linear.  So, the problem i see is the Major Step doesnt match excel.  The X-Axis does have percentages, but for example I have a XMax of 0.15 (15%) and XMin of 0, the Major Step is 0.02 (2%), but if i plot the same thing on Excel the Major Step is 0.05 (5%).  So, how can i get them to match? 

<telerik:RadCartesianChart Grid.Row="6" VerticalAlignment="Top" Height="300" Width="400">
                                <telerik:RadCartesianChart.HorizontalAxis>
                                    <telerik:LinearAxis LabelFormat="0%"/>
                                </telerik:RadCartesianChart.HorizontalAxis>

                                <telerik:RadCartesianChart.VerticalAxis>
                                    <telerik:CategoricalAxis/>
                                </telerik:RadCartesianChart.VerticalAxis>

                                <telerik:RadCartesianChart.Series>
                                    <telerik:BarSeries CategoryBinding="SectorDesc" ValueBinding="MtdSectorReturn" ItemsSource="{Binding SectorPerformance}">
                                        <telerik:BarSeries.PointTemplates>
                                            <DataTemplate>
                                                <Rectangle Fill="DarkBlue"/>
                                            </DataTemplate>
                                        </telerik:BarSeries.PointTemplates>
                                    </telerik:BarSeries>
                                </telerik:RadCartesianChart.Series>
                            </telerik:RadCartesianChart>