This simple line packs so much power. Adding a benchmark line to a graph gives loads of context for the viewer. Here’s how to make one right inside Excel. It’s so easy you might pass out. My data table looks like this: I have my data and I have the benchmark value listed next to each. Highlight the group names and their data and insert a simple bar graph: Then right-click on the graph and click Select Data. In that box that pops up, click the Add button to add a new series. In *that* dialogue box, select your Benchmark data.…
