. A sales budget is given below for one of the products manufactured by the Key Co.:

Sales Budget in Units

January 20,000

February 35,000

March 60,000

April 40,000

May 30,000

June 25,0000

The inventory of finished goods at the end of each month must equal 20% of the next month's sales. On December 31, the finished goods inventory totaled 4,000 units. Each unit of product requires three specialized electrical switches. Since the production of these specialized switches by Key's suppliers is sometimes irregular, the company has a policy of maintaining an ending inventory at the end of each month equal to 30% of the next month's production needs. This requirement had been met on January 1 of the current year. Required: (1) Prepare the production budget; (2) Prepare a budget showing the quantity of switches to be purchased each month for January, February, and March and in total for the quarter.