A fixed control volume has four one-dimensional boundary sections $(1,2,3$, and $4$). For a steady flow inside the control volume, the flow properties at each section are tabulated below:
$$\begin{array}{|l|l|l|l|l|l|} \hline \textbf{Boundary} & \textbf{Type} & \textbf{Density} & \textbf{Surface Normal} & \textbf{Cross-sectional} & \textbf{Specific} \\ \textbf{Section} && (\text {kg}/{m}^3) & \textbf{Velocity} & \textbf{Area} & \textbf{Energy} \\ &&& (\mathrm{m} / \mathrm{s}) & (\mathrm{m}^{2}) & (\mathrm{J} / \mathrm{kg} ) \\ \hline 1 & \text{Inlet} & 1000 & 10 & 0.5 & 200 \\ \hline 2 & \text{Inlet} & 1000 & 2 & 3.0 & 50 \\ \hline 3 & \text{Outlet} & 1000 & 5 & 1.0 & 100 \\ \hline 4 & \text{Outlet} & 1000 & 4 & 1.5 & 80 \\
\hline \end{array}$$
The rate of change of energy of the system which occupies the control volume at this instant is $E \times 10^{6} \mathrm{~J} / \mathrm{s}$. The value of $E$ (rounded off to $2$ decimal places) is $\_\_\_\_\_$
