Need to create a graph asap, please?

How do you create a graph in excel? Also if I have 15 houses in Philadelphia, 20 in Upper Darby, 25 in Drexel Hill, 29 in Haverford and 16 in Marple, what would be the percentages of these so I can put them on a graph, I really could use an example and direction to how I create a graph, thank you.