Mervyn’s Fine Fashions has an average collection period of 40 days. The accounts receivable balance is $80,000. What is the value of its credit sales?

I think i do not have ample information but I am expected to give an answer. so Here goes:

365 /80000 = 0.0045625
40 x 0.0045625 = 0.1825

I believe the value of the credit sales is $1825