your SAS reports, formats control how the data values are
displayed. To make data values more understandable when they are
displayed in your procedure output, you can use the FORMAT
statement, which associates formats with variables.
Formats affect only how the data values appear in output,
not the actual data values
as they are stored in the SAS data set.
General form, FORMAT statement:
variable(s) is the name of one or more
variables whose values are to be written according to a particular
format-name specifies a SAS format or a
user-defined format that is used to write out the values.
The FORMAT statement ...