Dollarama reported the following selected data $($in millions$)$:

$2020$

$2019$

Total assets

$$3,716\mathrm{.}5$

$$3,359\mathrm{.}7$

Total liabilities

$3,808\mathrm{.}7$

$3,677\mathrm{.}1$

Profit for the year

$564\mathrm{.}0$

$545\mathrm{.}0$

Income tax expense

$206\mathrm{.}3$

$205\mathrm{.}6$

Interest expense

$100\mathrm{.}6$

$94\mathrm{.}6$

Calculate the debt to total assets and interest coverage ratios for $2020$ and $2019.$ Did Dollarama's solvency improve, worsen, or remain unchanged in $2020?($Round answers to $1$ decimal place, e$.$g$.52\mathrm{.}2$ or $52\mathrm{.}2\%.)$

$2020$

$2019$

Dollarama's debt to total assets

Dollarama's interest coverage

$\%$

times

$\%$

times

The Dollarama's solvency

$$