Solve for the missing information designated by $"?"$ in the following table. $($Use $365$ days in a year. Round the inventory turnover ratio to one decimal place before computing days to sell. Round days to sell to one decimal place.$)$

$\backslash$table$[[$Case$,,,$Purchases,$Co,$ods,$\backslash$table$[[$Ending$],[$Inventory$]],\backslash$table$[[$Inventory$],[$Turnover Ratio$]],$Days to Sell$],[$a$.,$$$,170,830,$$$,810,,,],[$b$.,$$$,270,,$$$,1,480,,7\mathrm{.}4,],[$c$.,,,,$$$,1,280,115,,28\mathrm{.}5]]$