1 CHURCH & DWIGHT CO., INC. AND SUBSIDIARIES EXHIBIT 11 - COMPUTATION OF EARNINGS PER SHARE (In thousands except per share amounts) 1999 1998 1997 ---------------------------------------------------------- BASIC: Net Income $45,357 $30,289 $24,506 Weighted average shares outstanding 38,792 38,734 38,922 Basic earnings per share $1.17 $0.78 $0.63 DILUTED: Net Income $45,357 $30,289 $24,506 Weighted average shares outstanding 38,792 38,734 38,922 Incremental shares under stock option plans 2,251 1,316 1,020 ---------------------------------------------------------- Adjusted weighted average shares outstanding 41,043 40,050 39,942 ---------------------------------------------------------- Diluted earnings per share $1.11 $0.76 $0.61