With full exlanation of each step please

Tyler Co. predicts the following unit sales for the next four months: April, 3,700 units; May, 4,000 units; June, 6,200 units; and July, 2,700 units. The company's policy is to maintain finished goods inventory equal to 20% of the next month's sales. At the end of March, the company had 500 finished units on hand. Prepare a production budget for each of the months of April, May, and June