CABOT MEDICAL CORPORATION COMPUTATION OF EARNINGS PER SHARE (UNAUDITED) (In Thousands, except per share amounts) EXHIBIT 11 ---------- PRIMARY EARNINGS PER SHARE - -------------------------- Three months ended Six months ended April 29, April 30, April 29, April 30, -------------------- ------------------- 1995 1994 1995 1994 ---- ---- ---- ---- Computation for Statement of Earnings - ------------------------------------- Reconciliation of net earnings, per consolidated statement of earnings to amount used in primary earnings per share computation: Net earnings (loss) $( 64) $ 1,127 $ 155 $ 2,175 Add-Interest on long-term debt, net of tax effect, on application of assumed proceeds from exercise of options and warrants in excess of 20% limitation --- --- --- 77 -------- -------- ------- ------- Net earnings (loss), as adjusted $( 64) $ 1,127 $ 155 $ 2,252 -------- -------- ------- ------- Reconcilation of weighed average number of shares outstanding to amount used in primary earnings per share computation: Weighted average number of shares outstanding 10,359 10,304 10,333 10,278 Add-Equivalent shares issuable from assumed exercise of options and warrants in excess of 20% limitation --- 960 --- 1,045 ------- ------ ------ ------ Weighted average number of shares outstanding, as adjusted 10,359 11,264 10,333 11,323 ------ ------ ------ ------ Primary earnings per share $( .01) $ .10 $ .02 $ .20 -------- ------- ------- ------- 18 CABOT MEDICAL CORPORATION COMPUTATION OF EARNINGS PER SHARE (CONTINUED) (UNAUDITED) (In Thousands, except per share amounts) EXHIBIT 11 ---------- FULLY DILUTED EARNINGS PER SHARE Three months ended Six months ended - -------------------------------- April 29, April 30, April 29, April 30, --------------------- -------------------- 1995 1994 1995 1994 ---- ---- ---- ---- Computation for Statement of Earnings - ------------------------------------- Reconciliation of net earnings, per consolidated statement of earnings to amount used for fully diluted earnings per share computation: Net earnings (loss) $( 64) $ 1,127 $ 155 $ 2,175 Add-Interest on long-term debt, net of tax effect, on application of assumed proceeds from exercise of options and warrants in excess of 20% limitation --- --- --- --- ------- ------ ------- -------- Net earnings (loss), as adjusted $( 64) $ 1,127 $ 155 $ 2,175 ------- ------- ------- ------- Reconciliation of weighted average number of shares outstanding to amount used for fully diluted computation: Weighted average number of shares outstanding 10,359 10,304 10,333 10,278 Add-Equivalent shares issuable from assumed exercise of options and warrants in excess of 20% limitation --- 967 --- 1,049 ------ ------ ------ ------ Weighted average number of shares outstanding, as adjusted 10,359 11,271 10,333 11,327 ------ ------ ------ ------ Fully diluted earnings per share $( .01) $ .10 $ .02 $ .19 ------- ------ ------ ------- 19