 In comparison, Walmart rival and wholesaler Costco insures approximately 85% of its workers.In 2003 Walmart spent an average of $3,500 per employee for health care, 27% less than the retail-industry average of $4,800.When asked why so many Walmart workers choose to enroll in state health care plans instead of Walmart's own plan, Walmart CEO Lee Scott acknowledged that some states' benefits may be more generous than Walmart's own plan