3/50 = 6%
A value of 6% might show up as a sales tax, a small discount, or the chance of something happening. For example, a 6% chance means an event is unlikely, but it can still happen.
To picture 6%, imagine 6 shaded squares in a grid of 100. For a quick estimate, think of it as a little more than 1 out of every 20.
One common mistake is treating 6% as the same amount no matter what it applies to. A 6% discount saves much more on an expensive item than on a cheap one.