GRC International, Inc. Statement of Computation of Earnings Per Share (in thousands except for per share amounts) QTR ENDING YTD ENDING 09/30/99 09/30/98 09/30/99 09/30/98 ---------------------------- ----------------------------- BASIC Weighted Average Number of Shares of Common Stock Outstanding 10,959 10,214 10,959 10,214 Income from Continuing Operations 2,358 3,030 2,358 3,030 Income from Discontinued Operations - 54 - 54 ---------------------------- ----------------------------- Net Income 2,358 3,084 2,358 3,084 ============================ ============================= Per Share Amount: Income from Continuing Operations 0.22 0.29 0.22 0.29 Income from Discontinued Operations - 0.01 - 0.01 ---------------------------- ----------------------------- Net Income 0.22 0.30 0.22 0.30 ============================ ============================= DILUTED Weighted Average Number of Shares of Common Stock Outstanding 10,959 10,214 10,959 10,214 Net Effect of Dilutive Stock Options Based on the Treasury Stock Method Using Average Market Price 460 172 460 172 Net Effect of Convertible Debenture Based on the if Converted Method (ONLY IF DILUTIVE) - - - - ---------------------------- ----------------------------- Weighted Average Shares Outstanding 11,418 10,386 11,419 10,386 ============================ ============================= Income from Continuing Operations 2,358 3,030 2,358 3,030 Interest and Amortization on Convertible Debenture (ONLY IF DILUTIVE) - - - - Adjusted Income from Continuing Operations 2,358 3,030 2,358 3,030 Income from Discontinuing Operations - 54 - 54 ---------------------------- ----------------------------- Adjusted Net Income 2,358 3,084 2,358 3,084 ============================ ============================= Per Share Amount: Adjusted Income from Continuing Operations 0.21 0.29 0.21 0.29 Income from Discontinuing Operations - 0.01 - 0.01 ---------------------------- ----------------------------- Adjusted Net Income 0.21 0.30 0.21 0.30 ============================ =============================