How to Keep More Cash On Hand to Reinvest or Fund Operating Expenses.

Average Inventory over the last 12 month
Average Accounts Receivable over the last 12 months
Average Accounts Payable over the last 12 month
Cost of Goods Sold (Annual)
Revenue (Annual)

Days of Inventory Outstanding (DIO)
Days of Sales Outstanding (DSO)
Days of Payables Outstanding (DPO)

Cash Conversion cycle (dio + dso – dpo)