(3) Earnings Per Share

Earnings per common share are based on the weighted average number of shares outstanding, including outstanding non-vested restricted stock and outstanding Deferred Stock Units. Diluted earnings per share are based on the weighted average number of common shares and Deferred Stock Units outstanding plus the incremental shares that would have been outstanding upon the assumed exercise of all dilutive stock options.

The following table provides a reconciliation of the average number of common shares outstanding used to calculate earnings per common share to the average number of common shares and common share equivalents outstanding used to calculate diluted earnings per share (in thousands):


	Twenty Six Weeks Ended				Thirteen Weeks Ended
	July 1, 2017		June 25, 2016		July 1, 2017		June 25, 2016
Average number of common shares outstanding		41,907		42,315		41,935		42,235
Incremental shares from assumed exercises of stock options		97		109		75		122

Average number of common shares and common share equivalents outstanding		42,004		42,424		42,010		42,357

For each of the twenty-six-week periods ended July 1, 2017 and June 25, 2016, no options outstanding to purchase shares of common stock were antidilutive. Outstanding RSUs were excluded from the calculation of diluted earnings per share for all periods because the performance metric requirements or market condition for vesting had not been satisfied.