With the Infragistics ASP.NET MVC DataChart helper, currency formatting is usually handled through axis label and tooltip customization rather than directly inside the series configuration. You can format the numeric Y-axis labels by using a JavaScript label formatter that prepends the dollar sign and limits values to two decimal places, such as returning “$” + value.toFixed(2) inside the NumericY axis label settings. For tooltips, create a custom tooltip template and format the displayed value using JavaScript so numbers appear like $10.00 when users hover over chart columns. The legend text is generally taken from the series title, so if you want consistent currency display, focus on formatting axis labels and tooltip content. This approach is similar to cnc machining processes where precise parameter configuration ensures accurate output, just like proper chart formatting ensures correct financial data presentation.