Tesla Motors manufactures electric vehicles. At the beginning of the year, they had $500,000 worth of raw materials in inventory. Throughout the year, they purchased additional raw materials totaling $2,000,000. Direct labor costs for vehicle production amounted to $1,500,000. Overhead costs associated with manufacturing were $1,000,000. By the end of the year, they had $300,000 worth of raw materials remaining in inventory. Calculate the cost of goods sold for the year.