ethics in accounting

Question 2 Sherman Painting Shop sells a tailor-made and new painting to a customer for $2,420. The cost of the painting to Sherman is $1,600 and the cash selling price of the painting is $2,000, which represents the amount that the customer would pay upon delivery for the same painting sold under otherwise identical terms and conditions as at contract inception. Sherman offers a favourable term that the consideration can be payable 24 months after delivery and Sherman also allows a return of the painting within 90 days. REQUIRED Discuss how Sherman should account for the contract with the customer