Indicate the missing amount for each letter. Assume that in all cases manufacturing overhead is applied on the basis of direct labor cost and the rate is the same. $($Round overhead rate to $2$ decimal places, eg$.15\mathrm{.}25$ and final answers to $0$ decimal places, eg$.5,275.)$

$\backslash$table$[[,,$Case A$,$Case B$],[$Work in process $\frac{1}{1}\frac{?}{25},$$$,($a$),$$$19,220$