In this exercise, you modify the Sam’s Paper Shoppe application from Exercise 12. Use Windows to make a copy of the Sam Solution folder. Rename the copy Modified Sam Solution. Open the Sam Solution (Sam Solution.sln) file contained in the Modified Sam Solution folder. Change the code to give a 15% discount when the quantity purchased is at least 10 and a 5% discount when the quantity purchased is less than 10. Test the application appropriately.