Hi, do I include uncollected sales from March in my calculation?

Lee Corp. is preparing its cash budget for the month of May. The following information is available regarding the company's accounts receivable: Estimated cash sales for May $ 9.000 Estimated credit sales for May $ 26.000 Actual credit sales for April $19,500 Actual cash sales for April $ 7.200 Estimated collections in a month for that month's credit sales 30% Estimated collections in a month for credit sales in the previous month 65% Estimated collections in a month for uncollected sales from the two previous months or earlier 98% Uncollected sales from March 5 1,600 What are the estimated cash receipts for May. based on the above information