TextWindow.Write("Enter Your %: ")
Grade = TextWindow.ReadNumber()
TextWindow.WriteLine("Your % Grade is " + Grade)
If (90 < Grade <= 100 ) Then
TextWindow.WriteLine("Your Letter Grade is A")
ElseIf (80 <= Grade < 89) Then
TextWindow.WriteLine("Your Letter Grade is B")
ElseIf (70 <= Grade < 79) Then
TextWindow.WriteLine("Your Letter Grade is C")
ElseIf (60 <= Grade < 69) Then
TextWindow.WriteLine("Your Letter Grade is D")
ElseIf (0 <= Grade < 59) Then
TextWindow.WriteLine("Your Letter Grade is F")
Else
TextWindow.WriteLine("Cheater, grades are from 0-100%")
EndIf