Exhibit 11 BENTHOS, INC. AND SUBSIDIARY COMPUTATION OF EARNINGS PER SHARE FOR THE THIRTEEN WEEKS ENDED DECEMBER 31, 1997 AND DECEMBER 31, 1996 (in thousands, except per share amounts) Net Income Shares Per Share Amount For the thirteen weeks ended December 31, 1997 Net Income $190 - - Basic Earnings per share: Income available to common stockholders 190 1,293 $.15 ======= Diluted earnings per share: Options issued to Directors, Officers, and employees - 101 - ------- ------- Income available to common stockholders plus assumed conversions $190 1,394 $.14 ======= ======= ======= For the thirteen weeks ended December 31, 1996 Net Income $554 - - Basic Earnings per share: Income available to common stockholders 554 1,210 $.46 ======= Diluted earnings per share: Options issued to Directors, Officers, and employees - 173 - ------- ------- Income available to common stockholders plus assumed conversions $554 1,383 $.40 ======= ======= =======