Final answer:
Maria's percentage of profit is approximately 12.35%.
Step-by-step explanation:
To find Maria's percentage of profit, we first need to calculate her total cost and total revenue.
Since Maria purchased a 260 x 120 foot lot for $32,400 and divided it into two equal lots, the cost of the entire lot is $32,400.
Therefore, her total cost is $32,400.
Next, we need to calculate the revenue from selling the lots. Each lot has a front footage of 260/2 = 130 feet.
So, the revenue from selling one lot is 130 feet * $140 per front foot = $18,200.
Since Maria sold both lots, her total revenue is $18,200 * 2 = $36,400.
To calculate the profit, we subtract the total cost from the total revenue: $36,400 - $32,400 = $4,000.
Finally, to find the percentage of profit, we divide the profit by the total cost and multiply by 100: ($4,000 / $32,400) * 100 = 12.35%.
Therefore, Maria's percentage of profit is approximately 12.35%.