Please attach a sample file(.twbx) so that we can understand your requirement clearly & will provide you solution according to the data you have. BTW, Right click on Sum(Calculation3) & choose dual axis. As you are having no dimension(or field in column) it will show you two points not bar. Now, select Bar in Measure Value from Marks Card & Area in sum(calculation3) from Marks Card.
Hope this may help!