Show a decimal number as a percentage:

Display a table of random percentages:

Numbers of any size and sign can be shown in percent form:

PercentForm works on integers:

PercentForm does not work on rational or complex numbers:

Display percentages with different precisions:

PercentForm never uses scientific form:

Quantity can be used to work with percentages:

Convert to a normal number:

Represent that number using PercentForm:

They are the same number:

The typeset form of PercentForm[expr] is interpreted the same as expr when used in input:

Copy the output and paste it into an input cell. The 50% is interpreted as 0.5:

When an input evaluates to PercentForm[expr], PercentForm does not appear in the output:

Out is assigned the value 0.5, not PercentForm[0.5]:

Placeholder zeros may be needed if the requested precision is small:

Even when an output omits PercentForm from the top level, it is not stripped from subexpressions:

The output does not have PercentForm in it:

However, the variable e does have PercentForm in it, which may affect subsequent evaluations:

The product is not evaluated due to the intervening PercentForm:

Assign variables first and then apply PercentForm to the result to maintain computability: