67/84 expressed as a percentage is 79.76%. This is the rounded value you get when the fraction is turned into a percent and kept to two decimal places.
The fraction 67/84 is a little less than four fifths, so it makes sense that its percentage is just under 80 %. You might see this kind of number when comparing scores, test results, or any situation where part of a whole is measured.
When we write 79.76%, we are giving a clear, precise figure that is easy to read and compare. Rounding to two decimal places keeps the number tidy while still showing enough detail for most everyday uses.