Setup Cost $=\backslash$$$607$ per setup Holding cost $=\backslash$$$0\mathrm{.}18$ per unit per week Lead Time $=1$ Week Lot Size $\backslash (=\backslash )$ LFL $\backslash$begin$\{$tabular$\}\{|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|$l$|\}\backslash$hline Week & $1$ & $2$ & $3$ & $4$ & $5$ & $6$ & $7$ & $8$ & $9$ & $10$ & $11$ & $12\backslash \backslash \backslash$hline Gross Requirements & $407$ & $528$ & $464$ & $477$ & $500$ & $536$ & $465$ & $516$ & $517$ & $565$ & $464$ & $440\backslash \backslash \backslash$hline Scheduled Receipts & & & & & & & & & & & & $\backslash \backslash \backslash$hline Beg. Inventory & $868$ & & & & & & & & & & & $\backslash \backslash \backslash$hline Net Requirements & & & & & & & & & & & & $\backslash \backslash \backslash$hline Ending Inventory & & & & & & & & & & & & $\backslash \backslash \backslash$hline Planned Order Receipts & & & & & & & & & & & & $\backslash \backslash \backslash$hline Planned Order Releases & & & & & & & & & & & & $\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}$ If you have a required safety stock of $198$ units, indicate your Net Requirements for Week $4.$