Given : Forcasted demand 10,000 units per for 6 years current manufacuring cost of 10,000 sub-assemblies per year:

Given : Forcasted demand 10,000 units per for 6 yearscurrent manufacuring cost of 10,000 sub-assemblies per year:450,000direct labour 900,000variable overheads 450,0001000,000after 3 years material price will grow by 25% & labour rate by 10%.depreciation 400,000,eq. current book value=5400,000,straigit line method, current saling value 900,000,no resale value after 6 years. in case of purchase from out side 100,000. tax 35% miniimum ROR 15%. use NPV analysis ,determine whether it would be profitable to switch over from making sub-assemblies to buying the same from outside ?