Part WY4 costs the Eastern Division of Tyble Corporation $26 to  make-direct materials are $10, direct labor is $4, variable  manufacturing overhead is $9, and fixed manufacturing overhead is $3.  The Eastern Division can sell all of Part WY4 they can make to other  companies for $30. The Western Division of Tyble Corporation can use  Part WY4 in one of its products. What is the lowest transfer price at  which the Eastern Division would be willing to sell Part WY4 to the  Central Division?