fixed autoremove tax when discount & precision at receipt no report

app/controllers/concerns/number_formattable.rb

@@ -8,7 +8,7 @@ module NumberFormattable
       @precision = @number_formats.find? { |x| x.name.parameterize.underscore == 'precision'}.value.to_i rescue nil
     end
     if @precision.nil?
-      @print_settings = PrintSetting.get_precision_delimiter if !defined? @number_formats
+      @print_settings = PrintSetting.get_precision_delimiter if !defined? @print_settings
       if @print_settings
         @precision = @print_settings.precision.to_i
       else
@@ -45,7 +45,7 @@ module NumberFormattable
 		options[:precision] = options[:precision] || precision
 		# options[:delimiter] = options[:delimiter] || delimiter
 		options[:strip_insignificant_zeros] = options[:strip_insignificant_zeros] || strip_insignificant_zeros
-    
+
     number = number.to_f.round(options[:precision])
 
 		if options[:precision] > 0