Answer:
The answer is (D) By subtracting all the costs from the amount of money the customers paid.
Step-by-step explanation:
When we get the total costs and the amount customers paid we just need to subtract to get the profit made that month.
(m being total amount of money, c being the costs and p being the profit)
m - c = p
think of it this way, if we have an empty bag and each person that comes by puts one candy on the bag and 10 people come by we get a total of 10 candies, then we eat 5 candies to satisfy our desire for candy then we are left with 5 candies.
(the 10 people being customers, the 5 candies being the costs and the leftover 5 candies being the profit)