Exhibit 12 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES YEAR ENDED NOVEMBER 30, 2000 2001 2002 --------- --------- --------- Earnings: Income before income taxes....................... $ 87 $ 187 $ 42 Fixed charges included in income from operations per below...................... 20 36 19 Minority interest................................ (3) (4) 1 Amortization of financing costs.................. -- 3 4 --------- --------- --------- Total earnings................................... 104 222 66 Fixed Charges: Interest expense................................. $ 18 $ 33 $ 16 Portion of rent expense representing interest........................ 2 3 3 --------- --------- --------- Fixed charges included in income from operations................................ 20 36 19 Capitalized financing costs....................... -- 14 9 --------- --------- --------- Total fixed charges.............................. 20 50 28 --------- --------- --------- Ratio of earnings to fixed charges................. 5.2 4.4 2.4 ========= ========= =========