I am new to crystal reports 9 and am trying to turn a range of percentages in to grades, e.g. 0 to 30 as 'A' 30 to 60 as 'B' and 60 to 100 as 'C', how to i write this in a formula?
Regards

thanks for that, this is the formula that i have put in, but its only show the "A" grades on the report, what have i done wrong?

Select {@PERCENTAGE}
Case 0 To_ 5 : "A"
Case 5 To_ 20 : "B"
Case 20 To_ 30 : "C"
CASE 30 TO_ 40 : "D"
CASE 40 TO_ 100 : "E"