EARNINGS PER COMMON SHARE

6 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earning per Common Share

Earnings Per Common Share

The basic earnings per common share (EPS) calculation is computed by dividing net income attributable to holders of RSTI common stock by the weighted average number of shares outstanding during the period. Diluted earnings per common share reflect the potential dilution from common stock equivalents (stock options).

The calculation of the weighted average number of shares outstanding for each period is as follows:

	Three Months Ended March 31,		Six Months Ended March 31,
	2015	2014	2015	2014
Weighted number of shares for basic earnings per common share	28,113,807	28,116,693	28,080,589	28,132,038
Potential additional shares due to outstanding dilutive stock options	130,071	155,312	143,502	169,328
Weighted number of shares for diluted earnings per common share	28,243,878	28,272,005	28,224,091	28,301,366

The weighted average diluted shares outstanding for the six months endedMarch 31, 2015 and 2014, excludes the dilutive effect of approximately 2.4 million and 2.9 million stock options, respectively, since the impact of including these options in diluted earnings per share for these periods was antidilutive.