EXHIBIT 11 SERVICEMASTER LIMITED PARTNERSHIP EXHIBIT REGARDING DETAIL OF INCOME PER SHARE COMPUTATION (In thousands, except per share data) Years Ended December 31, 1994 1993 1992 Number of shares used in computing income per share and equivalent shares--Shares outstanding on weighted average basis. . . . . . . 75,748 75,235 74,023 Equivalent shares-- Options and subscriptions outstanding 1,690 1,611 1,665 . . . . . . . . . . . . . . . . . . ----- ----- ----- Total weighted average and equivalent shares 77,438 76,846 75,688 . . . . . . . . . . . . . . . . . . ====== ====== ====== Primary earnings per share . . . . . . . $1.81 $1.90 $1.61 . . . . . . . . . . . . . . . . . . ===== ===== ====== Net income . . . . . . . . . . . . . . . $139,883 $145,947 $122,065 Interest on convertible debentures . . . 2,078 2,539 2,374 . . . . . . . . . . . . . . . . . . ----- ----- ----- Adjusted net income. . . . . . . . . . . $141,961 $148,486 $124,439 . . . . . . . . . . . . . . . . . . ======== ======== ======== Weighted average number of common shares outstanding. . . . . . . . . 77,656 77,466 75,747 Other potentially dilutive securities 1,448 2,037 2,220 . . . . . . . . . . . . . . . . . . ------ ------ ------ Total weighted average number of shares . . . . . . . . . . . . . 79,104 79,503 77,967 . . . . . . . . . . . . . . . . . . ====== ======= ======= Fully diluted earnings per share . . . . $1.79 $1.87 $1.60 . . . . . . . . . . . . . . . . . . ===== ======= =======