ABC Company's budgeted sales for June, July, and August are $13,800,17,800,$ and $15,400$ units, respectively. ABC requires $40\%$ of the next month's budgeted unit sales as finished goods inventory each month. Budgeted ending finished goods inventory for May is $5,520$ units. Each unit that ABC Company produces uses $4$ pounds of raw material. ABC requires $35\%$ of the next month's budgeted production as raw material inventory each month.

Required:

Calculate the number of pounds of raw material to be purchased in June.