Table $1$

$\backslash$table$[[,$Month,$\backslash$table$[[$Production$],[$Days$]],\backslash$table$[[$Demand$],[$Forecast$]]],[1,$January,$22,950],[2,$February,$18,750],[3,$March,$21,750],[4,$April,$21,1,000],[5,$May,$22,1,300],[6,$June,$20,1,050]]$

$\backslash$table$[[$Other data$],[$Inventory carrying cost,$$5$ per unit per month$],[$Subcontracting cost per unit,$$10$ per unit$],[$Average pay rate,$$5$ per hour $($ $$40$ per day$)],[$Overtime pay Rate,$\backslash$table$[[$$$7$ per hour $($above $8hrs$