EXHIBIT 11 DYNCORP AND SUBSIDIARIES COMPUTATIONS OF EARNINGS PER COMMON SHARE (Dollars in Thousands Except Per Share Amounts) Three Months Ended Nine Months Ended September 25, September 26, September 25, September 26, 1997 1996 1997 1996 PRIMARY AND FULLY DILUTED Earnings: Earnings from continuing operations $4,087 $3,241 $8,433 $9,035 Discontinued operations - - - 865 ------- ------- ------- ------- Net earnings 4,087 3,241 8,433 9,900 Preferred stock Class C dividends not declared or recorded - (583) - (1,675) ------- ------- ------- ------- Common stockholders' share of earnings $4,087 $2,658 $8,433 $8,225 ======= ======= ======= ======= Shares: Weighted average common shares outstanding 8,927,654 8,415,946 8,792,461 8,464,517 Common stock issuable upon exercise of warrants 1,402,734 3,235,658 1,772,124 3,248,117 Common stock issuable upon exercise of stock options 127,377 34,486 129,652 12,291 ----------- ----------- ----------- ----------- 10,457,765 11,686,090 10,694,237 11,724,925 =========== =========== =========== =========== Earnings from continuing operations $ 0.39 $ 0.23 $ 0.79 $ 0.63 Discontinued operations - - - 0.07 -------- -------- -------- -------- Common stockholders' share of earnings $ 0.39 $ 0.23 $ 0.79 $ 0.70 ======== ======== ======== ========