<%# @param object [model] model instance %> <%# @param field_name [String] name of the field %> <%# @param value [Object] value of the field %> <%# @param metadata [Hash] metadata of the field %> <%= if value.nil? null else "%.#{ metadata[:precision] || 2 }f%%" % (value.to_f * (metadata[:is_percent] ? 1 : 100)) end %>