29 EXHIBIT 11.1 LANDSTAR SYSTEM, INC. AND SUBSIDIARY CALCULATION OF EARNINGS PER COMMON SHARE (In thousands, except per share amounts) (Unaudited) Fiscal Years Ended December 25, December 26, December 27, 1999 1998 1997 ------------ ------------ ------------ Income from continuing operations $ 45,937 $ 34,481 $ 25,428 Discontinued operations, net of income taxes (22,589) (738) ------------ ------------ ------------ Net income $ 45,937 $ 11,892 $ 24,690 ============ ============ ============ Average number of common shares outstanding 9,982 11,022 12,541 ============ ============ ============ Earnings per common share: Income from continuing operations $ 4.60 $ 3.13 $ 2.03 Loss from discontinued operations (2.05) (0.06) ------------ ------------ ------------ Earnings per common share $ 4.60 $ 1.08 $ 1.97 ============ ============ ============