Rahul, operations manager at a furniture store has received the following estimates of demand requirements: July August September 1400 1000 1200 October November 1800 1800 December 1600 respctively.Assuming stockout costs for lost sales of Rs.100 per unit, inventory carrying Inventory, evaluate these two plans based on overall costs: costs of Rs.25 per unit per month, Produce at a steady rate of 1000 units per month and subcontract additional units at a Rs.60 per unit premium cost.