Vlookup #n/a

[oalkhalili]

Hello,
I have to use index with match functions to find the correct cell in the matrix grade range A2:F16. I had tracked the error by a simple VLOOKUP. Below image shows the vlookup I am trying to use to find the result values for I19, based on the the range B20:C30. The vlookup works on all percentages except 6%, 10% and 11%; I receive #N/A error. I could not figure out why.
I hope someone can help with this.
Thank you,

 

[oalkhalili]

The problem only with occurs at 6%, 10% and 11%. Otherwise, the returns are correct. All cells are formatted correctly.

 

[oalkhalili]

No, I added the values manually.

 

[Jonmo1]

With 6% in I18, your expected matching cell is B25, correct?

What does this return
=I18=B25

?