Determine capital demands and capital turnover

Dear Teacher,

I had a promblem that I hope you could please help me clear:

1. in your note, Working capital = current asset – current liability.

in real life, my firm do business in many items, such as: coffee, steel, agri-product, real-estate,..v.vv.; So, when I make financial analysis to make a coffee business plan for purpose of bank short-term loans.. I have some information relatings to coffee business: Revenue, cost of sale, relatived expensive, and profit. I need to find out the firm’s capital needs and capital turnover, so I did as following:

– determine working capital demands for coffee business = current asset – current liability (detailed information on SOFP)

– determine capital turnover = 365 days / cash operating cycle

capital turnover = 365 days / ( coffee inventory days + coffee receivable days – coffee payable days )

I didn’t know whether my above calculation is correct . If I were wrong, Could you please help me clear

I appreaciate your help and hope to receive your reply soon

Thanks and best regards