we finished css absolute reference relative reference we are used to A1 reference style R1C1 reference style keyboard shortcuts with number keys IF function there is a diff between actual value in a cell and the value displayed http://supermanhomepage.com/movies/movies.php?topic=m-movie3 Having now taken a job as a computer programmer at Webscoe Industries, Gus Gorman is extremely disappointed when he sees his first paycheck. "Where did it all go?" he asks. During lunch, Gus and a friend discuss all the percentages taken from a paycheck. When Gus tells him that there has to be fractions of cents left over, Gus's friend tells him that the checks are rounded down to the nearest "half-cent". "Where do those half-cents go?" asked Gus. Suddenly, another light bulb goes on above Gus's head. When everyone else is leaving, Gus is still busy programming. we will have a quiz next Thursday, up to this material, plus a chapter in the book.