I always refused to budge my position on grammar checkers.
Until this May 2022 came around.
I read an article on Medium which mentioned — in passing — a program called ProWritingAid. My attention was caught by a particular note claiming it actually helps writers improve their skills.
There were long-term touch ups I wanted to make, so I gave it a shot. Ultimately, I enjoy much about the software.
Though it isn’t perfect.
I learned that UK English (as we us in Canada and differing from US English) spells 'percent' as 'per cent'.
And after adding 'percent' to the dictionary:
I later found out you separately need to add the capitalized form.