Here is another example of a simple error of omission that could have been caught if the student had read the essay aloud or given it to a friend to read. The word "of" should be between "calculation" and "the." That one small error makes the entire sentence awkward and confusing. If the instructor has to reread the sentence to try to understand its meaning, the flow of the essay is interrupted. If this happens often enough in the essay, it gives an overall bad impression on what otherwise might be a very good paper in terms of research.
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.