EXHIBIT 11 MOORE CORPORATION LIMITED CALCULATION OF EARNINGS PER SHARE UNDER UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES Three months ended Nine months ended September 30 September 30 ------------------------------------- ---------------------------------------- 2000 1999 2000 1999 ----------------- ---------------- ------------------- ----------------- Net earnings (loss) as determined under United States generally Accepted accounting principles (1) $ (1,681,000) $ 4,488,000 $ (15,385,000) $ 9,215,000 ================= ================ =================== ================= Weighted average number of shares outstanding - Basic 88,456,940 88,456,940 88,456,940 88,456,940 - Diluted 89,047,838 89,107,143 89,027,677 89,106,434 Earnings (loss) per share - Basic $ (0.02) $ 0.05 $ (0.17) $ 0.10 ================= ================ =================== ================= - Diluted $ (0.02) $ 0.05 $ (0.17) $ 0.10 ================= ================ =================== ================= (1) Refer to page 8 and 9 in the Consolidated Financial Statements included in the Interim Report to the Shareholders (see Exhibit 19). 5