An accurate tool for calculation

So, this is where I'm at--- I have realized that I need to find a great website, and one website that will do exactly what I need at this point of my life. Basically what I need is a final exam calculator, something that simply will tell me exactly what I need to score on my final exam to get the final grade in my course that I need for my progress to be moving forward in the course of attaining my degree. Does that make sense question a friend of mine recently recommended one, and I think I might be the very best one of its kind, but I'm still open for suggestions. Still, this is pretty damn good, it's called the final grade percentage calculator. Basically, all you have to do is enter three pieces of information. There's a box that asks you what your current grade is, a box that asks you what grade is the minimum that you would like to get, and then all you have to do is enter what your final is worth. After this, all you have to do is press the button that says calculate, and will tell you exactly what you need to get. You don't have to answer anything else.Any information about how the teacher ways other elements of your class, just these three pieces of information, which, as a major fan of efficiency, I think it's pretty damn good. And, to be honest, it seems to be right on point in terms of the accuracy of the equation. So, I guess I'm open for suggestions, but I think that I found the best one, and that is just fine by me, because I might be impressed by the Simplicity and effectiveness of this website. I guess I found it!