Various Financial Data for SunPath Manufacturing for 2008 & 2009

Various financial data for SunPath Manufacturing for 2008 & 2009 follow. $\begin{array}{llll} & & 2008 & 2009 \\\text { Output: } & \text { Sales } & \$ 300,000 & \$ 330,000 \\\text { Inputs: } & \text { Labor } & \$ 40,000 & \$ 43,000 \\& \text { Raw Materials: } & \$ 45,000 & \$ 51,000 \\& \text { Energy: } & \$ 10,000 & \$ 9,000 \\& \text { Capital Employed: } & \$ 250,000 & \$ 262,000 \\& \text { Other: } & \$ 2,000 & \$ 6,000\end{array}$
What is the percentage change in the energy partial productivity measure for SunPath between 2008 & 2009?

A) 9.22
B) 2.33
C) 0.53
D) 2.88
E) 10.39