Here is a solution for newer versions of JMP
We can start with the same example as the previous post
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/big class.jmp" );
dt << New Column( "percent", Format( "percent", 12, 1 ), formula( :Height / :Weight ) );
gb = Graph Builder(
Size( 528, 448 ),
Show Control Panel( 0 ),
Variables( X( :sex ), Y( :percent ) ),
Elements( Bar( X, Y, Legend( 6 ) ) )
);
Then in Graph Builder choose Label -> Label By Value. This will show the extra % symbol
Under Label Format, click on the Auto dropdown (twice) and choose a new format. One option would be best or fixed dec, but this will show the format as a decimal value
To get that value * 100, but without the percent symbol click on the dropdown again and choose Custom
Click Set Custom Format
The formula editor will open with the word value in the middle. Click the multiplication button and then type 100
Click OK