Exhibit 99.a.10 Revised Earnings per Share Computation Three and Six Months Ended June 30, 2000 (Unaudited) Three Months Ended June 30, 2000 Per Share Income Shares Amount - ---------------------------------------------------------------------------------------------------- Basic EPS (Thousands, except per share amounts) Income available for common stock $ 17,887 58,392 Convertible preferred stock 9,275 39,892 -------------------------- Income available for common stock + assumed conversion of preferred stock $ 27,162 98,284 $ 0.28 ========================== Further dilution from applying the "two- class" method (0.05) --------------- Basic earnings per share $ 0.23 =============== Effect of other dilutive securities Options - 8 -------------------------- Diluted EPS Income available for common stock + assumed exercise of stock options $ 27,162 98,292 $ 0.28 ========================== Further dilution from applying the "two- class" method (0.05) --------------- Diluted earnings per share $ 0.23 ==================================================================================================== Six Months Ended June 30, 2000 Per Share Income Shares Amount - ---------------------------------------------------------------------------------------------------- Basic EPS (Thousands, except per share amounts) Income available for common stock $ 71,634 58,438 Convertible preferred stock 18,550 39,892 -------------------------- Income available for common stock + assumed conversion of preferred stock $ 90,184 98,330 $ 0.92 ========================== Further dilution from applying the "two- class" method (0.16) --------------- Basic earnings per share $ 0.76 =============== Effect of other dilutive securities Options - 4 -------------------------- Diluted EPS Income available for common stock + assumed exercise of stock options $ 90,184 98,334 $ 0.92 ========================== Further dilution from applying the "two- class" method (0.16) --------------- Diluted earnings per share $ 0.76 ====================================================================================================