Use the selected financial data from GEX Company to answer questions :

Use the selected financial data from GEX Company to answer questions :

Inventory       $57 million

Accounts receivable    52 million

Current assets     129 million

Total assets      324 million

Accounts payable     36 million

Current liabilities     61 million

Total liabilities      163 million

Total stockholder's equity 161 million

Net sales       345 million

Cost of goods sold    248 million

Operating profit     23 million

Income tax expense    4 million

Net profit        11 million

f, Calculate the operating profit margin.