I think we just need to be able to use mathematical operators in the graphing section. ie entering in the first box
Call of Duty 4 - PS3 (+) Call of Duty 4 - X360
and in the second box
Call of Duty 5 - PS3 (+) Call of Duty 5 - X360 (+) Call of Duty 5 - Wii
and then it'd add the games sales for each week and graph them.







