966/1200 = 80.5%
The fraction 966/1200 represents 80.5%, a little more than four-fifths of a whole. A value like this might show up when 966 students out of 1,200 attend a school event, or when a phone battery is just over 80% charged.
To picture it quickly, imagine a bar divided into ten equal sections, with about eight full sections and a tiny bit of a ninth. It is close to 80%, but the extra half percent means it is slightly higher than four-fifths.
A common point of confusion is treating 80.5% as exactly 80% and ignoring the extra 0.5 percentage point. Also, 80.5% does not mean 80.5 out of 100 items in every situation; it describes a proportion that may come from much larger totals, such as 966 out of 1,200.