The table below illustrates the output choices the typical computer producer faced in 1978.

\begin{tabular}{ccccccccc}
\begin{tabular}{c}
Output \\
per \\
Month
\end{tabular} & Price & \begin{tabular}{c}
Total \\
Revenue
\end{tabular} & Total Cost & Total Profit & \begin{tabular}{c}
Marginal \\
Revenue
\end{tabular} & \begin{tabular}{c}
Revenue \\
Cost
\end{tabular} & \begin{tabular}{c}
Average \\
Total Cost
\end{tabular} & \begin{tabular}{c}
Profit per \\
Unit (Price \\
ATC)
\end{tabular} \\
\hline
0 & [tex]$\$[/tex]1,000[tex]$ & $[/tex]\[tex]$0$[/tex] & [tex]$\$[/tex]60,000[tex]$ & $[/tex]-\[tex]$60,000$[/tex] & - & - & - & - \\
100 & 1,000 & 100,000 & 90,000 & 10,000 & [tex]$\$[/tex]1,000[tex]$ & $[/tex]\[tex]$300$[/tex] & [tex]$\$[/tex]900[tex]$ & $[/tex]\[tex]$100$[/tex] \\
200 & 1,000 & 200,000 & 130,000 & 70,000 & 1,000 & 400 & 650 & 350 \\
300 & 1,000 & 300,000 & 180,000 & 120,000 & 1,000 & 500 & 600 & 400 \\
400 & 1,000 & 400,000 & 240,000 & 160,000 & 1,000 & 600 & 600 & 400 \\
500 & 1,000 & 500,000 & 320,000 & 180,000 & 1,000 & 800 & 640 & 360 \\
600 & 1,000 & 600,000 & 420,000 & 180,000 & 1,000 & 1,000 & 700 & 300 \\
700 & 1,000 & 700,000 & 546,000 & 154,000 & 1,000 & 1,260 & 780 & 220 \\
800 & 1,000 & 800,000 & 720,000 & 80,000 & 1,000 & 1,740 & 900 & 100 \\
900 & 1,000 & 900,000 & 919,800 & [tex]$-19,800$[/tex] & 1,000 & 1,998 & 1,022 & -22
\end{tabular}

According to the table,

Instructions: Enter your responses as a whole number.

a. What was the prevailing computer price in 1978?