Mello is a retailer of fashionable merchandise. The firm turns its inventory 5 times each year and has an average collection period of 37 days. The firms annual sales are $4.2 million, its cost of goods sold represents 72% of sales, and its purchases represent 81% of the cost of goods sold. The firms accounts payable total $0.6 million. Assume a 365-day year.

Calculate the firms cash conversion cycle. Give your answer in days, rounded to 1 decimal place.

Please give a step-by-step answer and clearly explain the problem solving process.