how do I calcualate it

Project Questions: -71) The often-referenced 28% rule says that you shouldn't spend more than that percentage of your monthly gross income on your mortgage payment. Gross income is your total household income before you deduct taxes, debt payments and other expenses. Please provide an actual or hypothetical monthly income. Based on your income, how much can you afford to spend on a monthly mortgage payment? (5 points) Let's say it montly gross income $2,400 - How a I do the rest? How I to spend on a montly on these payment? calculate it, How much I can afford. Say ga