Five machines will constitute a GT cell. The fromto data for the machines are shown in the table below. (a) Determine the most logical sequence of machines for this data, and construct the network diagram, showing where and how many parts enter and exit the system. (b) Compute the percentages of in-sequence moves, bypassing moves, and backtracking moves in the solution.

\begin{tabular}{|c|c|c|c|c|c|} \hline & \multicolumn{5}{|c|}{ To } \\ \hline From & 1 & 2 & 3 & 4 & 5 \\ \hline 1 & 0 & 30 & 70 & 0 & 0 \\ \hline 2 & 25 & 0 & 0 & 50 & 0 \\ \hline 3 & 30 & 0 & 0 & 0 & 0 \\ \hline 4 & 45 & 5 & 15 & 0 & 10 \\ \hline 5 & 0 & 55 & 0 & 20 & 0 \\ \hline \end{tabular}