How to convert numeric to alphabet in userform?

  • Hello, so I want the program to read the number from the score tab (txtScore) and change it to an alphabet grade, and put it in the alphabet score tab (txtAlphabetS) in my userform, but I don't know how to make the subroutine to read the input in score tab and then insert it to alphabet score tab. Here's the userform design and the code

    Actually this is from the test that was held this morning, but I just want to know how to solve this problem because as you can see, I'm terrible at programming and I don't see any bright future in this subject alone. Thankfully I will not face any programming subject in my next semester (If I don't fail this class). Any help would be appreciated, thank you.