Chow Corporation manufactures children's chairs made of PVS plastic tubing and heavy canvas material. Each chair requires eight feet of the PVC tubing and three yards of material. Budgeted sales are 20,000 chairs for June, 25,000 chairs for July and 30,000 chairs for August. Ending finished goods inventory is budgeted at 10% of the current month's sales. Ending materials inventories are budgeted at 10% of the current month's production. Prepare schedules showing (1) purchase requirements for PVC tubing and for (2) materials required for each of the months of June, July and August. Assume 16,000 feet of PVC tubing and 6,000 yards of material are on hand at the beginning of June. Prepare a production budget for each of the months of June, July and August. Assume the beginning inventory of chairs in June will be 2,500 units.