The Following Information Is for the Harding Company for 2012

The following information is for the Harding Company for 2012:
$\begin{array}{lll}&\text { Dec } 31&\text { Jan } 1\\\text { Raw Materials Inventory } & \$ 330 & \$ 340 \\\text { Work in Process } & \$ 340 & \$ 190 \\\text { Finished Goods } & \$ 350 & \$ 370\\\text { Direct materials used }&&\$1,130\\\text { Total Manufacturing costs charged to }\\\text { production of which } \$ 855 \text { was }\\\text { manufacturing overhead }&&\$3,340\\\\\text { Selling and administrative expenses }&&\$2,460\\\text { Sales revenue }&&\$6,390\end{array}$
Required:
(1) What is the cost of materials purchased?
(2) What is the cost of goods sold?
(3) What is gross profit?
(4) What is net profit?