Net Taxes Output Consumption (Income) Spending All Numbers are in $ Billion Investment Government Spending Spending 400 400 100 200 100 800 700 100 200 100 1,200 1,000 100 200 100 1,600 1,300 100 200 100 2,000 1,600 100 200 100 According to table, at an output level of $1,200 billion, calculate the level of aggregate expenditure (Show your calculations).