EXHIBIT (12) COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES PRO FORMA SIX MONTHS TWELVE TWELVE ENDED MONTHS MONTHS YEARS ENDED AUGUST 31, ------------------- ENDED ENDED ---------------------------------------- FEB. 28, FEB. 29, FEB. 29, FEB. 29, 1991 1992 1993 1994 1995 1995 1996 1996 1996 ----- ----- ------ ------ ------ -------- -------- -------- --------- Earnings: Income (loss) before income taxes.............................. (74) (596) 2,770 3,962 94 (1,560) (2,956) (1,302) (4,528) Fixed charges (see computation below)............................. 7,527 7,803 7,911 9,251 11,631 5,619 7,433 13,445 16,671 Reduced by: Interest capitalized........................ (4) (113) (347) -- (451) (798) (798) ----- ----- ------ ------ ------ -------- -------- -------- --------- Total earnings available for fixed charges................. 7,453 7,007 10,677 13,100 11,378 4,059 4,026 11,345 11,345 Fixed charges: Interest expense.................. 2,820 2,039 2,064 2,804 5,067 2,415 3,737 6,389 9,201 Capitalized interest.............. -- -- 4 113 347 -- 451 798 798 Amortization...................... 97 93 144 63 75 40 122 157 571 Interest component of rent expense............................ 4,610 5,471 5,699 6,271 6,142 3,164 3,123 6,101 6,101 ----- ----- ------ ------ ------ -------- -------- -------- --------- Total fixed charges............. 7,527 7,603 7,911 9,251 11,631 5,619 7,433 13,445 16,671 Ratio of earnings to fixed charges............................ 1.35 1.42 -- -- -- -- Deficit of earnings to fixed charges............................ 74 596 -- -- 253 1,560 3,407 2,100 5,326