For the following data, what is the beginning inventory for March if a firm is pursuing level Strategy. Cost Data

Labor cost

$\backslash$table$[[,$Regular,$20$$$/$hour$],[,$Over Time,$30$st noul$],[,$Hiring,$100$s$/$emplovee$],[,$Firing,$10$ $$/$unit$/$period$],[$Inventory Holding,,$15\frac{\text{\$}}{?}$ unit$/$period$],[$Shortage$,,45$ $$/$unit$/$period$],[$material$,,],[$Capacity$,,],[$Workforce$,$beginning,$15$empioyees$],[$Inventory$,$initial,Sounits$],[$Production rate,,chours$/$unit$],[$Regular time,,$\backslash$table$[[160$ yee$],[$hours$/$period$/$empl$]]],[$Over time,available,s$]]$

$\backslash$table$[[$Month$,$Demand$],[$Jan$,400],[$Feb$,250],[$Mar$,275],[$April$,325],[$May$,350]]$