UNIT 1(b)- INCOMPLETE RECORDS orial class 1. Billy Ocean is a trader in seafood. The firm uses a margin of 1/6. For the month of May 2017 his opening stock was 70,000, purchases as $250,000, and closing stock was $120,000. What as his sales? 2. The Blue Ray is a trader in home dcor items. The firm operates with a mark-up of 25% During the month of April 2017 opening stock was $80.000. and purchases as $300,000. Sales for the period was $350.000. At the end of the month a portion of his stock was stolen. The amount remaining was $30,000 a) What was the value of the closing stock? b) What portion of stock was stolen?