EXHIBIT 11 CHARTER POWER SYSTEMS, INC. AND SUBSIDIARIES EARNINGS PER SHARE COMPUTATIONS (Dollars and shares in thousands) (Unaudited) (Unaudited) Three months ended Six months ended July 31, July 31, 1996 1995 1996 1995 ---- ---- ---- ---- NET INCOME ................................. $2,650 $3,930 $6,296 $7,105 ====== ====== ====== ====== Weighted average number of common shares outstanding ....................... 6,441 5,979 6,363 5,973 Effect of shares issuable under stock option plan .............................. 161 455 213 441 ------ ------ ------ ------ WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING (PRIMARY) ............. 6,602 6,434 6,576 6,414 ====== ====== ====== ====== NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE (PRIMARY) ............................... $ 0.40 $ 0.61 $ 0.96 $ 1.11 ====== ====== ====== ====== Weighted average number of common shares outstanding ....................... 6,441 5,979 6,363 5,973 Effect of shares issuable under stock option plan .............................. 161 468 213 448 ------ ------ ------ ------ WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING (FULLY DILUTED) ................................. 6,602 6,447 6,576 6,421 ====== ====== ====== ====== NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE (FULLY DILUTED) .......................... $ 0.40 $ 0.61 $ 0.96 $ 1.11 ====== ====== ====== ======