If you have estimated your PBI, you have your velocity, now you have your plan, and you want to monitor it.
A graphics approach is the burn-down/burn-up chart.
In either this chart, you have on the X-axis the time and on the y time the story point.
With the burn-down chart, you start to the total story point of your backlog, and you want to decrease it because when you meet the 0, you end all the items.
So in the burn-down chart, you have two lines: a baseline that is the initially planned story point for each sprint. Against the baseline, you have a line with the actual story point done for each sprint. You are ahead of schedule when the whole story line is above the baseline. When it is below the baseline, you are behind schedule.
In the image4, you can see an example of a burn-down chart where the baseline is 20 story points done for each sprint. During the work, we looked that we made less than 20 stories for each of the first three sprints, instead of from sprint four, the velocity is improved, and we reached the schedule.
In the burn-up chart, you start from zero story point with all the lines, and you want to tend to the total story point, but the usage is similar.
In image5 you can see the same data but plot on a burn-up chart.
With these two graphs, you can easily view the work done, and the work needed, fostering transparency and inspection.