For Each Company, Calculate the Missing Amount

For each company, calculate the missing amount. $$\begin{array}{l}\begin{array} { l c c r r r } &&\text { Cost of }\\\text { Company } & \text { Sales } & \begin{array} { c } \text { Goods } \\\text { Sold }\end{array} & \begin{array} { l } \text { Gross } \\\text { Profit }\end{array} & \begin{array} { r } \text { Operating } \\\text { Expenses }\end{array} & \begin{array} { c } \text { Net } \\\text { Income }\end{array} \\\text { Lennon } & \$ 8,000 & ( \text { a) } & \$ 4,000 & \$ 3,000 & \$ 1,000 \\\text { Harrison } & 9,000 & 3,000 & \text { (b) } & 2,000 & 4,000 \\\text { MeCartney } & 8,000 & 3,000 & 5,000 & \text { (c) } & 2,000 \\\text { Starr } & 7,000 & 3,000 & 5,000 & 3,000 & \text { (d) }\end{array}\end{array}$$