The increased cost of funds tied up in accounts receivable for Bugle Boy Company is $8,612,864. This was calculated using the formula: Increased cost of funds = Average accounts receivable × Average daily sales on credit × Opportunity cost of funds, where the average accounts receivable was assumed to increase proportionally with the increase in sales, the average daily sales on credit was calculated as $16,767.12, and the opportunity cost of funds was given as 10%.