Assume that the demand during five months are 100, 120, 120, 100, and 110 units, and a level strategy of making 110 units is followed. Assume $7 carrying cost per unit held in inventory from one month to next; there is no initial inventory; demand not met is back-ordered to the next month at a penalty of $15 per unit. demand 100 120 120 100 110 production 110 110 110 110 110 inventory backorder Complete the table above, and determine the total inventory cost incurred during this period. The answer to be submitted is just the total inventory cost, nothing else.

\begin{tabular}{|r|r|l|l|} \hline demand & production & inventory & backorder \\ \hline 100 & 110 & & \\ \hline 120 & 110 & & \\ \hline 120 & 110 & & \\ \hline 100 & 110 & & \\ \hline 110 & 110 & & \\ \hline \end{tabular}