On January 1, 2021, Casselberry Retailers had inventory of $49,600. On December 31, 2021, total inventory on hand was $65,300. Casselberry reported the following account balances on December 31:

Freight in		$2,900
Purchases		507,900
Purchase returns and allowances		1,800
Purchase discounts		5,900
Sales		840,000
Sales discounts		3,700
Sales returns and allowances		8,800

Calculate Casselberry Retailers 2021 gross profit. Calculate Casselberry Retailers 2021 operating expenses if profit is $128,900 and there are no non-operating activities.