i think whether its a good grade or not, its upon you to decide. are you satisfied with it? did you work hard and still didn't get the kind of result you wanted? these are the questions you must be asking yourself. and if you want more, always be hungry for it. improve yourself and get better.
That would be a percentage of 67.5%. In my book, that is a C at best, and unless the teacher grades on a curve and there are a lof of others who didn't do well in that class, I wouldn't expect any academic awards in that class.