This sample uses an inverse axis in a chart to plot an exchange rate over a period of time.
In this example, you can see how to invert the axis of the chart. Here, both X and Y axis are inverse by setting the IsInversed property in axis to true.
Tooltip is enabled in this example. To see the tooltip in action, hover over a data point or tap one on touch-enabled devices.
More information about the inverse axis can be found in this documentation section.