Due to competition, SpareBucs is unable to increase the price and must continue selling its Fralatte at the original price. In Manhattan, their average monthly sales are 600 Fralattes.

A monthly marketing campaign that costs a fixed $500 every month can lead to an increase of 200 Fralattes in their average monthly sales. Fralatte price $7.00. Cost me $2.00 to produce.

Question 2.4 Should they invest in the marketing campaign? (Show work in excel).