Question: how do you calculate your grade with percentages?
Answer: All you have to do is convert the percentage the assignment is worth into a decimal and multiply that by your grade. To convert, just divide the percentage of your final grade the assignment represents by 100. So your 10 percent assignments turn into a weighted factor of 10 / 100 = 0.1, and your exam is 50 / 100 = 0.5.