This chart gives insight on the latest performance of an offer. You can see this chart on Offer List Overview. It will look like the following:
EPC - shows the overall Affiliate's EPC (Affiliate Commission / Number of Clicks) for the past 30 days.
Green bars - represents the click volume on a particular day. One bar equals to one day. The chart will show the past 7 day worth of click volumes, thus 7 green bars.
Mouseover box (example: 35) - shows the click volume of the bar you mouseover.
However, use this chart as a way to get quick insight on the Offer Performance and not for detailed reporting. The chart is not real-time and it will be refreshed at least every 15 minutes.
All Interal User Roles (Owner and Admin User) can see this chart.