EXHIBIT 11 DYNCORP AND SUBSIDIARIES COMPUTATIONS OF EARNINGS PER COMMON SHARE (Dollars in thousands, except per share amounts) March 27, March 28, PRIMARY AND FULLY DILUTED 1997 1996 Earnings: Earnings from continuing operations $ 2,311 $ 2,241 Preferred stock Class C dividends not declared or recorded - (534) Common stockholders' share of earnings $ 2,311 $ 1,707 Shares: Weighted average common shares outstanding 8,628,228 8,154,327 Common stock issuable upon exercise of warrants 2,321,176 4,074,291 Common stock issuable upon exercise of stock options 128,749 2,387 11,078,153 12,231,005 Common stockholders' share of earnings per common share $ 0.21 $ 0.14