This data rendering helper method will convert percentage values into a bar. Values can either have the % sign or not and decimals get rounded to the given value. The percentage will have a max value of 100%.
This is a new category of plug-ins - they are functions that use the
orthogonal data options of DataTables 1.10 to provide formatting helper
functions. They do not directly interface with DataTables themselves,
but provide easy to use functions for developers to format their data in
the DataTable.