EXHIBIT 11 MANGOSOFT, INC. AND SUBSIDIARY (A DEVELOPMENT STAGE COMPANY) COMPUTATION OF NET INCOME (LOSS) PER COMMON SHARE THREE AND SIX MONTHS ENDED JUNE 30, 2000 AND 1999 (UNAUDITED) THREE MONTHS ENDED JUNE 30, --------------------------- 2000 1999 -------- -------- BASIC NET INCOME (LOSS) PER COMMON SHARE: Net income (loss) applicable to common shares as reported $ 7,067,382 $(2,539,340) Weighted average number of common shares outstanding: Common Stock ....................................... 26,142,501 136,949 ----------- ----------- Basic net income (loss) per common share ........... $ 0.27 $ (18.54) =========== =========== DILUTED NET INCOME (LOSS) PER COMMON SHARE: Net income (loss) applicable to common shares as reported $ 7,067,382 $(2,539,340) Weighted average number of common shares outstanding: Common Stock ....................................... 26,142,501 136,949 Effect of common stock equivalents ................. 3,337,397 -- ----------- ----------- Total ......................................... 29,479,898 136,949 ----------- ----------- Diluted net income (loss) per common share ......... $ 0.24 $ (18.54) =========== =========== SIX MONTHS ENDED JUNE 30, --------------------------- 2000 1999 -------- -------- BASIC NET LOSS PER COMMON SHARE: Net loss applicable to common shares as reported .... $(26,802,848) $ (5,142,908) Weighted average number of common shares outstanding: Common Stock ................................... 23,153,033 136,949 ------------ ------------ Basic net loss per common share ................ $ (1.16) $ (37.55) ============ ============ DILUTED NET LOSS PER COMMON SHARE: Net loss applicable to common shares as reported .... $(26,802,848) $ (5,142,908) Weighted average number of common shares outstanding: Common Stock ................................... 23,153,033 136,949 Effect of common stock equivalents ............. -- -- ------------ ------------ Total ..................................... 23,153,033 136,949 ------------ ------------ Diluted net loss per common share .............. $ (1.16) $ (37.55) ============ ============ 21