how can they calculate -1,330.00; -1,440.00; -1,538.000 in the COST BENEFIT ANALYSIS: TRANSPORTATION PROJECT (RAIL SYSTEM) O Total costs - revenue (over 30 years) Transport benefits Increased productivity value-add (net) Net cost benefit Benefit-cost ratio (rounded) 8% discount -$1,330.00 $1,319.00 $3,333.00 $3,322.00 3.5 6% discount -$1,440.00 $2,057.00 $4,720.00 $5,337.00 4.7 4% discount -$1,538.00 $3,277.00 $6,879.00 $8,618.00 6.6

\begin{tabular}{|l|c|c|c|} \hline \multicolumn{4}{|c|}{ COST BENEFIT ANALYSIS: TRANSPORTATION PROJECT (RAIL SYSTEM) [0]) } \\ \hline & 8% discount & 6% discount & 4% discount \\ \hline \begin{tabular}{l} Total costs - \\ revenue (over 30 \\ years) \end{tabular} & $1,330.00 & $1,440.00 & $1,538.00 \\ \hline \begin{tabular}{l} Transport benefits \\ Increased \\ productivity \\ value-add (net) \end{tabular} & $1,319.00 & $2,057.00 & $3,277.00 \\ \hline \begin{tabular}{l} Net cost benefit \\ Benefit-cost ratio \end{tabular} & $3,322.00 & $5,337.00 & $8,618.00 \\ \hline \begin{tabular}{l} (rounded) \\ \hline \end{tabular} \end{tabular}