. . . EXHIBIT 12.3 ROGERS CABLE INC. COMPUTATION OF FINANCIAL RATIOS Year Ended December 31, ---------------------------------------------------- 1998 1999 2000 2001 2002 ---- ---- ---- ---- ---- (dollars in thousands) AMOUNTS UNDER CANADIAN GAAP Operating income before interest, income taxes, depreciation, amortization, and other items (A) $ 377,962 $ 388,049 $ 431,833 $ 488,024 $ 531,735 Interest expense (B) $ 300,547 $ 292,993 $ 192,025 $ 174,626 $ 213,332 Senior debt (C) $1,757,432 $1,156,518 $1,455,446 $1,452,175 $2,181,649 Total debt (excluding inter-company deeply subordinated debt) (D) $2,311,745 $1,870,349 $1,619,710 $2,102,743 $2,557,555 Total debt to operating income before interest, income taxes, depreciation, amortization, and other items (D) / (A) 6.12 4.82 3.75 4.31 4.81 Senior debt to operating income before interest, income taxes, depreciation, amortization, and other items (C) / (A) 4.65 2.98 3.37 2.98 4.10 Operating income before interest, income taxes, depreciation, amortization, and other items to total interest expense (1) (A) / (B) 1.59 1.62 2.25 2.79 2.49 Three months ended (2) March 31, ------------------------- 2002 2003 ---- ---- AMOUNTS UNDER CANADIAN GAAP Operating income before interest, income taxes, depreciation, amortization, and other items $ 123,726 $ 148,728 Interest expense $ 43,403 $ 58,536 Senior debt $2,146,123 $2,266,448 Total debt (excluding inter-company deeply subordinated debt) $2,311,098 $2,580,831 Total debt to operating income before interest, income taxes, depreciation, amortization, and other items 4.67 4.34 Senior debt to operating income before interest, income taxes, depreciation, amortization, and other items 4.34 3.81 Operating income before interest, income taxes, depreciation, amortization, and other items to total interest expense (1) 2.85 2.54 Footnote references: (1) For purposes of this ratio, interest expense excludes interest expense on inter-company deeply subordinated debt. Interest expense for inter-company deeply subordinated debt amounted to $62,326 and $53,558 for the years ended December 31, 1998 and 1999, respectively. (2) For purposes of calculating these financial ratios at March 31, 2002 and 2003, operating income before interest, income taxes, depreciation, amortization, and other items has been annualized for the three months ended March 31, 2002 and 2003.