Packaging Corporation of America produces containerboard and white papers. WestRock Co. manufactures paper products and corrugated products. Financial statement data for these two companies follow: Source: Computed from amounts in the Packaging Corporation of America and WestRock Co. Form 10-Ks for 2014-2018. In 2015 and 2016, WestRock was known as WRKCo., Inc. Required: 1. Determine the receivables turnover ratios for both companies for 2016, 2017, and 2018. (Use 365 days in a year. Do not round intermediate calculations. Round your answers to 1 decimal place.) 2. Which company collected its accounts receivable more quickly in 2018