In fact, it has been suggested that between 20% and 40% of all spreadsheets in use within organizations contain errors, Hofmann explained, noting examples from the book. ???As a case in point, Davies and Ikin (1987) found ??? after inspecting 19 spreadsheets being used in 10 different firms, dealing with issues such as project costing, payroll, loan schedules, and short-term money market investmen