Consider Derek's budget information: Materials to be used total $63,400; direct labor totals $200,300; factory overhead totals $397,800; work in process inventory on January 1 is $189,700; and work in progress inventory on December 31 is $196,200. The budgeted cost of goods manufactured for the year is Oa. $661,500 Ob. $196,200 Oc. $655,000 Od. $851,200