EXHIBIT 11 MOORE CORPORATION LIMITED CALCULATION OF EARNINGS PER SHARE UNDER UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES Three months ended Six months ended June 30 June 30 ------------------------------------- ---------------------------------------- 2000 1999 2000 1999 ----------------- ---------------- ------------------- ----------------- Net earnings (loss) as determined under United States generally Accepted accounting principles (1) $ (7,606,000) $ (1,152,000) $ (13,704,000) $ 4,727,000 ================= ================ =================== ================= Weighted average number of shares outstanding - Basic 88,456,940 88,456,940 88,456,940 88,456,940 - Diluted 89,019,712 88,868,439 89,072,466 88,870,326 Earnings (loss) per share - Basic $ (0.08) $ (0.01) $ 0.15 $ 0.05 ================= ================ =================== ================= - Diluted $ (0.08) $ (0.01) $ 0.15 $ 0.05 ================= ================ =================== ================= (1) Refer to page 8 and 9 in the Consolidated Financial Statements included in the Interim Report to the Shareholders (see Exhibit 19). 6