What is the country’s Net National Product (NNP) at factor cost?

Use this data below to answer the question

The following data relates to the national income of a country.
Gross domestic product = $2800
Net factor income from abroad = $250
Depreciation = $700
Indirect taxes = $120

A. $3.050
B. $2,680
C. $2,230
D. $2.220

Correct Answer:

Option C = $2,230