A national accounting calculation The question that I am trying to answer is as follows:


  For a given year, South Africa's Gross Domestic Expenditure (GDE) is R 3 251 414, imports are R 987 781, and exports are R891 562. The table below lists the taxes and subsidies applicable to the South African economy:
  $$\begin{array} {|l|rr|}
\hline
\text{Taxes on production} &amp; \text{R} &amp; 54\ 166 \\
\hline
\text{Taxes on products} &amp; \text{R} &amp; 338\ 792 \\
\hline
\text{Subsidies on production} &amp; \text{R} &amp; 14\ 358 \\
\hline
\text{Subsidies on products} &amp; \text{R} &amp; 18\ 684 \\
\hline
\end{array}$$
  The gross value added at factor cost is
  
  A. R 2 795 279
  
  B. R 2 863 543
  
  C. R 2 835 087
  
  D. R 3 155 195
  
  E. R 3 347 633


My Answer is R 2 891 498, because I took the GDE and added subsidies and subtracted taxes. I did that because I assumed that the GDE was given at market prices. I disregarded the information about imports and subsidies because I assumed that GDE was calculated using the equation Y=C+I+G+X-M.
I disregarded the information about imports and subsidies because I assumed that GDE was calculated using the equation Y=C+I+G+X-M.


This is where I went wrong. GDE is calculated as C+I+G, but to get GDP at market prices, I need to add nett exports.