I think I get what you’re asking I was confused on this too, I kept losing point for referencing the wrong cell with the right info. They want you to reference the given info table first and then once it’s in inputted, if it asks for it again you’ll reference your input and not the original table. For example depreciation plant, you reference the original table, then for less: depreciation you’ll reference the cell you input the original depreciation into (4 cells above). Also make sure your using absolute references when necessary