Evaluation for 2nd Marking Period

I actually didn't do that good this marking period. My grade was higher last marking period. Last marking period my grade was 98% and it dropped to 96% this marking period. I'm little upset about it, but grades are always up and down so what can I do. My best category for this marking period was engagement and classwork. Also my lowest grade category was in shark tank presentation.  I am not missing any assignments since I finish them on time. I believe that I can do lot better if I pay attention in class and do all of my work with extra effort. If I do so then there is a chance that I will get about 98-100% in class. Lastly I would say that I'm confident about this marking period than the others because I know that I want to keep my grade up at the time and not let it drop again.