Darby Company has budgeted sales of its popular toy for the next four months as follows: April May June July Unit Sales 90,000 95,000 130,000 100,000 The company is now in the process of preparing a purchase budget for the second quarter. Past experience has shown that end-of-month inventory levels must equal 20% of the following month's unit sales. The inventory at the end of March was 18,000 units. Prepare a purchase budget by month and in total, for the second quarter. Darby Company Purchase Budget April May June Quarter Budgeted units sales Total needs Required production in units