calculate economic cost
1.purchase of raw materials 200
2. payment of wages & salaries 500
3. payment of rent 50
4. donations 100
5. estimated value of services of owners 300
6. expected min profit 40
7. estimated super normal profit 240 [in rs]

Dear Student, it is a very nice question. Here is the solution to your question.

Economic cost = Explicit Cost + Implicit Cost
Economic cost = (Purchase of raw materials + Payment of wages & salaries + Payment of rent) + (Estimated value of services of owners + Expected minimum profit)
= 200 + 500 + 50 + 300 + 40 
= Rs 1,090

So, economic cost is Rs 1,090.