# You can specify the format of the axis values with the :format option. # # Valid options are: :percentage, :currency, :seconds, :float. # filename = File.basename(__FILE__).gsub('.rb', '.pdf') Prawn::ManualBuilder::Example.generate(filename) do data = {views: {Safari: 45.20001, Firefox: 33.3999, Chrome: 21.4}} chart data, format: :percentage end