Consider Derek's budget information: materials to be used, $63,800; direct labor, $202,000; factory overhead, $394,900; work in process inventory on January 1 , $189,300; and work in process inventory on December 31,$196,900. What is the budgeted cost of goods manufactured for the year? a. $196,900 b. $660,700 c. $653,100 d. $850,000