The actual results for August were as follows: Required: Calculate the company's revenue and spending variances for August. (Indicate the effect of each variance by selecting " F " for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.) Quilcene Oysteria Revenue and Spending Variances For the Month Ended August 31 \begin{tabular}{|l|l|} \hline Revenue \\ \hline Expenses: \\ \hline Packing supplies \\ \hline Oyster bed maintenance \\ \hline Wages and salaries \\ \hline Shipping \\ \hline Utilities \\ \hline Other \\ \hline Total expense \\ \hline Net operating income \\ \hline \end{tabular}