Letter of explanation (grades) -edit?

<p>Hello everyone,
I have to write a letter of explanation because of my final marks of high school being lower than what was expected. (0.166% lower)
If anyone is interested in editing my letter please pm me. (grammer mostly)
It's only about 250 words.</p>

<p>Thanks
(The school sent me a letter asking for an explanation)</p>

<p>Thank you everyone for the help.
I’m sending the letter today.</p>