Final answer:
The payback period for the real estate sign investment is 5.3 months, calculated by dividing the total cost of $5,100 by the monthly revenue of $969.
Step-by-step explanation:
The payback period is a financial metric used to determine the amount of time it takes for an investment to generate enough revenues to cover the initial cost. In your case, as a real estate agent, you are considering placing a sign that will cost $5,100, and you expect it to generate an additional revenue of $969 a month. To calculate the payback period, you would divide the total cost of the investment by the monthly revenue increase.
$5,100 / $969/month = 5.26 months
Therefore, after rounding to one decimal place, the payback period for your sign would be 5.3 months.