Earnings per share

Hallo zusammen,
ich habe folgende Aufgabe gelöst und weiss aber nicht ob meine Ergebnisse stimmen. Hat jemand Anhnung inwieweit meine Ergebnisse richtig sind?

& lt;TJX., an apparel retailer, reported net income (amonts in
thousands) of $ 609,699 for Year 4. The weighted average of common
shares outsanding during Year 4 was 488,809 shares. TJX., subtracted
interest expense net of tax saving on convertible debt of $ 4,482. If
the convertible debt had been converted into common stock, it would
have increased the weigthed average common shares outstanding by
16,905 shares. TJX, Inc. , has outstanding stock options that, if
exercised, would increase the weighted average of common shares
outstanding by 6,935 shares. Compute basic and diluted earings per
share for year 4, showing supporting computations. 
 
Wenn ich mich nicht täusche müssten doch die Basic EPS der unverwässerte Ergebnis je Aktie und die Diluted EPS der verwässerte Ergebnis je Aktie sein.
Hier meine Rechnungen
basic EPS: (Net Income-Prefered Stock Dividends) / (Weighted Average Number of Common Share Outstanding)
Basic EPS: 609,99 / 488,809 = 1,2473 € Ergebnis je Aktie.

Diluted EPS = (Net Income - Prefered Stock Dividends + Adjusted for Dilutive securites) / ( durchschnittlich number of common stock outstanding+ WA number of shares issuable form dilutive securities)
Diluted EPS = (609,699+4482) / (488,809+16.905) = 0,2927 € je Aktie