Variable calculation #2

This is a development/continuation of a question I asked some months ago. Previously, I asked about comparing variables, and with valuable help from ​@john.desborough I resolved it. “I created another variable (balance) that takes its value from the figure for income. Then I added the figure for expenses to the surplus variable, subtracted the surplus value from the balance and compared income to balance. This allows the comparison to be made leaving the income figure intact.”

That calculation was to determine whether income is greater (by a factor) than expenses. Now I’d like to add another calculation that determines whether expenses are more than income. I have tried to follow the same pattern creating another variable, ‘deficit’,

• Add expenses to deficit
• Subtract income from deficit
• Query whether deficit > 0

However, putting both calculations in the same questions ends in a mess. I can’t work out how to put two calculations, with two outcomes into the same question. When I put test figures into the questionnaire, the first calculation works ok, but it always proceeds to the second. Both statements can’t be true - either income is greater than expenses, or expenses are more than income.

I’d be very grateful for suggestions or a solution.