Suppose the spreadsheet was used for a class in a different university with a different grade and quality point schedule. Suppose a VLOOKUP formula was developed for looking up the values for the letter grades and quality points but that it returned values that were one letter grade too high. The likely error is that:

The columns in the VLOOKUP table are in the wrong order

The letter grades do not match the course average values

The values in the VLOOKUP table are sorted descending

The $[$table$\_$array$]$ argument does not include the whole range