Zhang Industries budgets production of 400 units in June and 410 units in July. Each finished unit requires 4 pounds (lbs.) of raw material K, which costs $5 per pound. Each month's ending Inventory of raw materials should be 20% of the following month's budgeted production. The June 1 raw materials Inventory has 320 pounds of raw material K. Compute budgeted purchases for raw material K in pounds for June. Multiple Choice o . o 1640 lbs. o ib. o 1620 Ibe o