Answer: Understated by $7 million
Step-by-step explanation:
Cost of goods old is calculated by deducting the closing balance of inventory from the Opening balance and the Purchases for the period in the manner:
Cost of Goods sold = Opening inventory + Purchases - Closing stock.
Going by the formula, if the opening inventory is understated by $7 million, the cost of goods sold will be understated by the same amount because opening inventory adds to Cost of goods sold.