Cost of goods sold 650,000 Opening inventory 65,000 Closing inventory 135,000 Annual credit sales 550,000 Annual credit purchase 350,000 Creditors in the 115,000 beginning Creditors at the end 95,000 Debtors in the beginning 130,000 Debtors at the end 150,000 Based on the above information, calculate the following The average inventory conversion period is; The average collection period is; The average payment period is; The cash conversion period is