\(\begin{array}{c|c}
\text{Output(kg)} & 240 & 450 & 580 & 630 \\
\hline
\text{MR(N)} & 75 & 48 & -40 & -22 \\
\hline
\text{MC(N)} & 41& 48 & 77 & 20 \\
\end{array}\)
Given the table above, what is the firm’s short – run profit maximizing output?