Profitability Analysis for Casper Corp.

For the year ended September 27, 2014, Casper Corporation reported net income of $2,180 million. Total shareholders' equity on this date was $18,378 million, and on September 28, 2013, it was $19,693 million. No preferred stock was outstanding in either year.

Required:

1. Compute Casper's return on common stockholders' equity for the year ended September 27, 2014. Round your answer to two decimal places.