2/16 = 12.5%
A value of 12.5% might show up as a discount on a store item, a share of a group, or a small fee on a bill. It’s a modest amount, but it can still matter when the total is large.
To picture it quickly, imagine splitting something into eight equal parts and taking one part. It’s a little more than one-tenth, so you can estimate it as slightly above 10%.
One common mix-up is treating 12.5% as 12.5 instead of as a portion of the whole. The percent sign means “out of 100,” so the value refers to a part of the total, not a standalone amount.