Final Grade Exam Calculator

Figure out exactly where you stand going into your final exam. Adjusting the sliders give instant feedback. + and - buttons give close control over honing in on exact values. Also included is a +/- 5% range to quickly determine a range about the desired mark. Clearly determine what kind of mark is "impossible" to obtain. Extremely simplistic; 1 activity App. Clean & stylish.

Any suggestions for improvements or found bugs please don't hesitate to let me know.