Help with Pivot Graphs and how to show monthly variance percentage and dollar

I want to make a pivot graph showing each month's sales and the variance (+/-) $ and percentage and I just can't sort it through.  I know it's gotta be simple but I'm just not doing it right.  I have already made a regular graph showing the month by month data but I want to also show the variance.  Here is what I have:

Any assistance is greatly appreciated!