Earnings Per Share

3 Months Ended

Mar. 31, 2018

The shares used in the computation of the company’s basic and diluted earnings per common share are as follows:



	Three Months Ended
	March 31, 2018	April 1, 2017
Weighted-average common shares outstanding	56,651,508	57,940,664
Effect of dilutive securities	1,113,721	1,383,806
Weighted-average common shares outstanding, assuming dilution	57,765,229	59,324,470

The dilutive effect of the potential exercise of outstanding options and stock-settled SARs to purchase common shares is calculated using the treasury stock method. As of March 31, 2018, there were 715,083 awards outstanding that were anti-dilutive; as of April 1, 2017, there were 3,000 awards outstanding that were anti-dilutive. Performance-based equity awards are included in the diluted earnings per share calculation based on the attainment of the applicable performance metrics to date.