Question: $500,000 per what time period (at what frequency)? Similarly, how often how frequently, does the extra $5 million occur?

Context: If a firm has an average daily remittance of $2 million and 1.5 days can be saved in the collection process by establishing a sophisticated collection network, the firm has freed $3 million for investment elsewhere. Also, through stretching the disbursement schedule by one day, perhaps another $2 million will become available for other uses