46 EXHIBIT 11.1 LANDSTAR SYSTEM, INC. AND SUBSIDIARY CALCULATION OF EARNINGS PER COMMON SHARE (In thousands, except per share amounts) (Unaudited) Fiscal Year Ended December 27, December 28, December 30, 1997 1996 1995 ------------ ------------ ------------ Net income $ 24,690 $ 18,925 $ 24,962 ============ ============ ============ Average number of common shares outstanding 12,541 12,785 12,807 ============ ============ ============ Earnings per common share $ 1.97 $ 1.48 $ 1.95 ============ ============ ============