Rounding numbers can make them easier to read and compare, although this must be balanced against the loss of precision.
The level of rounding you use (for example, one decimal place or two significant figures) should be effective, and chosen according to the intended use. It should also be consistent throughout your piece of writing.
For more detail about intended users, go to Number rounding in the Data visualisation section.
For more information about presenting tables and graphs (including rounding on page 7), see the Government Statistical Service’s Good Practice Team guidance.