PercentForm

PercentForm[expr] prints with numbers in expr given as percentages.

PercentForm[expr,n] prints with approximate real numbers in expr given as percentages to n-digit precision.

Examples

Display a number as a percentage:

PercentForm[0.25]
(* 25.% *)

PercentForm[1/3, 3]
(* 33.3% *)

Please visit the official Wolfram Language Reference for more details.