EXHIBIT 11 CHARTER POWER SYSTEMS, INC. AND SUBSIDIARIES EARNINGS PER SHARE COMPUTATIONS (Dollars and shares in thousands) (Unaudited) Three months ended April 30, 1996 1995 ---- ---- NET INCOME $3,646 $3,175 ===== ===== Weighted average number of common shares outstanding 6,283 5,967 Effect of shares issuable under stock option plan 265 428 ----- ----- WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING (PRIMARY) 6,548 6,395 ===== ===== NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE (PRIMARY) $ .56 $ .50 ===== ===== Weighted average number of common shares outstanding 6,283 5,967 Effect of shares issuable under stock option plan 266 428 ----- ----- WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING (FULLY DILUTED) 6,549 6,395 ===== ===== NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE (FULLY DILUTED) $ .56 $ .50 ===== =====