Firstly, you probably want to learn how to type fast. Typing has become more than necessary for us in order to deliver a better quality work. You can learn typing by getting some typing software that allow you to improve your typing speed by going through sets of exercises and games. Set a timetable and stick to it. By practicing it for half an hour per day, you will become a typing master in no time! Learning to type fast will not only help you to finish your work faster but also boost your confidence to conquer the computer.
Nearly every strength and conditioning coach in the country relies on percentages to enforce desired intensities to athletes for certain lifts. Basically, the client would perform their lift at a percentage of their 1 repetition max. If they had a max bench press of 100lbs, and you wanted to do 3 sets of 12 reps at 60%, they would do 3x12 at 60lbs. This is absolutely necessary in most strength and conditioning environments for multiple reasons, including consistent program design as well as enforcement of intensity (speaking from experience, some people WILL slack if given the chance). So the question becomes, are percentages right for you?