Wattan Company reports beginning inventory of $28$ units at $$39$ each. Every week for four weeks it purchases an additional $28$ units at respective costs of $$40,$$$41,$$$44,$ and $$49$ per unit for weeks $1$ through $4.$ Compute the cost of goods available for sale and the units available for sale for this four$-$week period. Assume that no sales occur during those four weeks.

$\backslash$table$[[$Activity$,$Units,Units cost,$\backslash$table$[[$Cost of$],[$Goods$],[$Available$]]],[$Beginning Inventory,,,$],[1$st week purchase,,,$],[2$nd week purchase,,,$],[3$rd week purchase,,,$],[4$th week purchase,,,$],[$Units available for sale,,,$],[$Cost of goods available for sale,,,$]]$