Calculating payable days, please help!

kelove1

Please can someone help me calculate the payable days when given figures for this items,

Sales
Gross profit
Operating profit
Non current asset nbv
Inventory
Debtors
Cash
Creditors

I know the calculation should be payables/cost of sales x 365
But not even sure how to calculate cost of sales from only these.

Sorry its probably easy but I'm struggling a bit with this.

anony123

Is this for the working capital?

anony123

May just be debtors/inventory * amount of days (should be given in the scenario)
Not sure tbh. If it is for the management techniques exam, it is easier then this