Average collection period =360/ turnover times of accounts receivable.

Turnover times of accounts received in advance = sales revenue/average balance of accounts received in advance

Inventory turnover times = cost of sales/average inventory balance

Inventory turnover days =360/ inventory turnover times

Prepayment turnover times = cost of sales/average prepayment balance

Accounts payable turnover times = cost of sales/average accounts payable balance

Accounts payable turnover days =360/ accounts payable turnover times

Liquidity = sales revenue of last year ×( 1- sales profit rate of last year )× (1+estimated annual sales revenue growth rate)/turnover times of liquidity.

In which: turnover times of working capital = 360/ (inventory turnover days+average collection period-accounts payable turnover days 62+ prepayments turnover days-prepayments turnover days).

New working capital loan amount = working capital-borrower's own funds-existing working capital loans-working capital provided by other channels.