The national accounts of Parchment Paradise are kept on parchment. A fire destroys the statistics office. The accounts are now incomplete but they contain the following data:

GDP (income approach): $2,900

Consumption expenditure: $2,000

Indirect taxes less subsidies: $100

Net operating surplus: $500

Investment: $800

Government expenditure: $400

Wages: $2,000

Net exports: -$200

a.Calculate GDP (expenditure approach) and depreciation.

b. Calculate net domestic product at factor cost and the statistical discrepancy.