Q: When I create a ceiling grid, the values displayed in the Calculation Results are "flip-flopped", or reversed, from the information as it appears in the Plan view. Why?

A: When viewing a grid in Calculation Results, you are viewing the grid from the direction from which light would strike it. The information displayed in the Plan view is seen when looking down into the space; the information displayed in the Calculation Results is seen when looking up at the Ceiling Grid.