Open Text Corporation's financial statements contain the following selected data (in U.S. $ millions 2015 2014 Total assets $4,388 $3,900 Total liabilities 2,559 2,258 Net Income 234 218 Income tax expense 32 58 Interest expense 55 28 (a) Calculate the debt to total assets and times interest earned ratios for 2015 and 2014. (Round answers to 1 decimal place, e.g. 17.5% or 6.3.) 2015 2014 Debt to total assets % % Times interest earned times times Did Open Text's solvency improve or deteriorate in 2015