P9-51. Interpreting Warranty Liability Disclosures The following information was extracted from the 2014 10-K reports of Hewlett-Packard Company and Cisco Systems, Inc. Hewlett-Packard Cisco Systems, Inc. ($ millions) 2014 2013 2014 2013 . . $73,726 $72,398 2,007 2,031 $36,172 $38,029 649 402 704 446 REQUIRED Compute the amount of warranty costs incurred in 2014 for each company. (That is, what amount was spent for warranty repairs and settlements in 2014?) Compare these two companies on the basis of the ratio of warranty expense to sales. What fac- tors might explain any difference that you observe? a. b