The following information is available for a company's maintenance cost over the last seven months. Using the high-low method, estimate both the fixed and variable components of its maintenance cost. \begin{tabular}{|l|l|} \hline \\ \hline Total cost at the high point \\ \hline Variable costs at the high point: \\ \hline Volume at the high point: \\ \hline Variable cost per unit produced & \\ \hline Total fixed costs \\ \hline Total cost at the low point \\ \hline Variable costs at the low point: \\ \hline Volume at the low point: & \\ \hline Variable cost per unit produced \\ \hline Total variable costs at the low point \\ \hline Total fixed costs & \\ \hline \end{tabular}