"Working and poor" (Cover Story, May 31) should have described the average hourly pay at Wal-Mart Stores Inc. (WMT

) ($9.64) as one-third less than the union chains' (not one-third of their level). In "Will souping up TiVo save it?" (Information Technology, May 17), we miscalculated the expected percentage change in the company's revenues. Analysts estimate that TiVo's revenues, excluding sales of TiVo hardware, will rise 49% to $115.8 million in the fiscal year ending in January 2005.