If your numbers are below the 80% range, they warrant an acknowledgement and an explanation. Similarly, if extenuating circumstances caused the low numbers, those circumstances are an important part of your profile. The optional essay is often the place to make these statements. If you write the optional essay, make it short and straightforward. Provide a brief explanation, take responsibility, and focus on evidence of your talents that counters the impression made by the low stats. Also, explain (or, ideally, show through example and anecdote) that either you have dealt with the problem causing the poor grades, or the circumstances no longer apply.
Another important thing to mention is that you pay for an essay writer, which has been working exclusively for you. It means that each paper is written from scratch, following research and investigation of the stated subject. We never copy information from other papers and do not give the same papers for different topics. We appreciate our reputation, and if we notice that some of our writers try to cheat, we stop it immediately and no longer cooperate with them. The write my essay community must be fair. That is a clue to success in any sphere, including writing.