Hi All, I'm ashamed to ask what should be a ridiculously simple question, but I don't work much with charting...

I want a single stacked column chart to show expenses relative to income. What I want it to look like, is the "whole" column have the the income amount and the expenses to be within that area. If I put the expenses as a negative value, then the expenses column goes below the zero line, if it's a positive number then the chart area expands upwards. Essentially what I'm looking for is to have the expenses "fill" the income column so we can quickly see what has been spent relative to what is available.