--- title: "Chart annotations" description: "Explain changes, growth, targets, and gaps with chart annotations" --- Select a chart and use its main toolbar on the right to add an annotation. Grunt supports **Value Jump**, **CAGR**, **Value Line**, and **Level Difference**. ## Value Jump Use a Value Jump to show a change between two data points. It initially spans the leftmost and rightmost columns. Drag either anchor to another column to choose the comparison. A Value Jump compares values at two chart columns Double-click the arrow to reverse its direction. Click its label to choose a calculation, such as absolute change, percentage change, or both, and adjust its formatting. The annotation label menu changes how the difference is calculated ## CAGR **CAGR** displays the compound annual growth rate between two points. Add it through the same chart toolbar. Grunt uses chart column positions for an index-based calculation unless it recognizes date labels, in which case it uses a date-based calculation. Click the annotation to inspect its calculation details; hover over it to check the method in the tooltip. A CAGR annotation displays compound growth across the selected period Check the calculation method before presenting the result, especially if your categories represent irregular intervals. ## Value Line Use a Value Line as a horizontal reference for a target, budget, break-even point, or other benchmark. It makes the values above or below that threshold easier to identify. A Value Line marks a reference level across the chart ## Level Difference Use Level Difference to show the gap between two values or series, such as actual versus target. Drag its anchors to position the comparison, then choose a percentage or numeric difference. A Level Difference highlights a gap between chart values For editing the chart's source data, see [Charts](/powerpoint-add-in/user/charts). For connector-based totals and subtotals, see [Waterfall charts](/powerpoint-add-in/user/waterfall-charts).