Basic net income per share is computed by dividing the net income attributable to PriceSmart for the period by the weighted average number of common shares outstanding during the period. Diluted net income per share is computed by dividing the net income attributable to PriceSmart for the period by the weighted average number of common and common equivalent shares outstanding during the period. The Company excludes stock options from the calculation of diluted net income per share when the combined exercise price, average unamortized fair values and assumed tax benefits upon exercise are greater than the average market price for the Company's common stock because their effect is anti-dilutive.

The following table sets forth the computation of net income per share for the nine months ended May 31, 2011 and 2010 (in thousands, except per share amounts):