EXHIBIT 12 GROVE HOLDINGS LLC COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) PREDECESSOR --------------------------------------------------------------------- FISCAL YEAR ENDED --------------------------------------------------------------------- OCTOBER 2, OCTOBER 1, SEPTEMBER 30, SEPTEMBER 28, SEPTEMBER 27, 1993 1994 1995 1996 1997 ----------- ----------- ------------- ------------- ------------- Earnings (loss) before income taxes................ $ 6,168 $ 4,203 $ 35,782 $ 47,636 $ 68,469 Interest expense................................... 2,771 3,170 2,614 3,326 2,042 Amortization of deferred financing costs........... -- -- -- -- -- Portion of rent expense representative of interest (a)..................................... 850 832 535 935 1,162 ----------- ----------- ------------- ------------- ------------- Earnings before fixed charges...................... $ 9,789 $ 8,205 $ 38,931 $ 51,897 $ 71,673 ----------- ----------- ------------- ------------- ------------- ----------- ----------- ------------- ------------- ------------- Fixed charges: Interest expense................................. $ 2,771 $ 3,170 $ 2,614 $ 3,326 $ 2,042 Amortization of deferred financing costs........... -- -- -- -- -- Portion of rent expense representative of interest (a)..................................... 850 832 535 935 1,162 ----------- ----------- ------------- ------------- ------------- Total fixed charges.......................... $ 3,621 $ 4,002 $ 3,149 $ 4,261 $ 3,204 ----------- ----------- ------------- ------------- ------------- ----------- ----------- ------------- ------------- ------------- Ratio of earnings to fixed charges................. 2.7 2.1 12.4 12.2 22.4 ----------- ----------- ------------- ------------- ------------- ----------- ----------- ------------- ------------- ------------- COMPANY PRO FORMA ----------- ---------------------------- NINE MONTHS SEVEN MONTHS TWO MONTHS FISCAL YEAR NINE MONTHS ENDED ENDED ENDED ENDED ENDED JUNE 28, APRIL 28, JUNE 27, SEPTEMBER 27, JUNE 27, 1997 1998 1998 1997 1998 ------------- ------------- ----------- ------------- ------------- Earnings (loss) before income taxes................ $ 45,068 $ 16,109 $ (8,669) $ 26,058 $ (8,218) Interest expense................................... 1,926 938 7,994 44,318 33,264 Amortization of deferred financing costs........... -- -- 331 2,000 1,500 Portion of rent expense representative of interest (a)..................................... 978 832 238 1,162 1,070 ------------- ------------- ----------- ------------- ------------- Earnings before fixed charges...................... $ 47,972 $ 17,879 $ (106) $ 73,538 $ 27,616 ------------- ------------- ----------- ------------- ------------- ------------- ------------- ----------- ------------- ------------- Fixed charges: Interest expense................................. $ 1,926 $ 938 $ 7,994 $ 44,318 $ 33,264 Amortization of deferred financing costs........... -- -- 331 2,000 1,500 Portion of rent expense representative of interest (a)..................................... 978 832 238 1,162 1,070 ------------- ------------- ----------- ------------- ------------- Total fixed charges.......................... $ 2,904 $ 1,770 $ 8,563 $ 47,480 $ 35,834 ------------- ------------- ----------- ------------- ------------- ------------- ------------- ----------- ------------- ------------- Ratio of earnings to fixed charges................. 16.5 10.1 (b) 1.5 (c) ------------- ------------- ----------- ------------- ------------- ------------- ------------- ----------- ------------- ------------- - ------------------------ (a) Deemed to be one-third of interest expense (b) Earnings before fixed charges were insufficient to cover fixed charges by $8,669 for the two months ended June 27, 1998. Earnings for the two months June 27, 1998 include non-cash charges of $13,080. (c) Pro forma earnings before fixed charges were insufficient to cover fixed charges by $8,218 for the nine months ended June 27, 1998. Earnings for the nine months June 27, 1998 include non-cash charges of $15,341.