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

• GDP (expenditure approach): $2 940
• Compensation of employees: $520
• Indirect taxes less subsidies: $93
• Net interest: $490
• Gross Private Investment: $810
• Government expenditure: $420
• Rental income: $205
• Net exports: $136
• Corporate profits: $580
• Proprietors income: $240
• Net Investment: $370

a) Calculate National Income and depreciation.

b) Calculate GDP (income approach) and the statistical discrepancy.