Arden Inc. prepares its variable overhead performance report on the basis of the actual direct labour$-$hours for the period. Data from the most recent fiscal year, which ended on March $31,$ are shown below: $\backslash$begin$\{$tabular$\}\{$lr$\}$ Budgeted direct labour$-$hours & $21,000\backslash \backslash$ Actual direct labour$-$hours & $22,000\backslash \backslash$ Standard direct labour$-$hours allowed & $22,500\backslash \backslash$ Cost formula $($per direct labour$-$hour$)$: & $\backslash \backslash$ Indirect labour & $\backslash (\backslash$$ $0\mathrm{.}90\backslash )\backslash \backslash$ Supplies & $\backslash (\backslash$$ $0\mathrm{.}15\backslash )\backslash \backslash$ Electricity & $\backslash (\backslash$$ $0\mathrm{.}05\backslash )\backslash \backslash$ Actual costs incurred: & $\backslash (\backslash$$ $21,000\backslash )\backslash \backslash$ Indirect labour & $\backslash (\backslash$$ $3,450\backslash )\backslash \backslash$ Supplies & $\backslash (\backslash$$ $000\backslash )\backslash$end$\{$tabular$\}$ Required: Prepare a variable overhead performance report. Compute both variable overhead spending and efficiency variances. Note: Indicate the effect of each variance by selecting $"$F$"$ for favourable, $"$U$"$ for unfavourable, and "None" for no effect $($i$.$e$.,$ zero variance$).\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|\}\backslash$hline $\backslash$multicolumn$\{8\}\{|$c$|\}\{$Arden Incorporated$\}\backslash \backslash \backslash$hline $\backslash$multicolumn$\{8\}\{|$c$|\}\{$Variable Overhead Performance Report$\}\backslash \backslash \backslash$hline $\backslash$multicolumn$\{8\}\{|$c$|\}\{$For the Year Ended March $31\}\backslash \backslash \backslash$hline Overhead Costs & Cost Formula & $\backslash$begin$\{$tabular$\}\{$l$\}$ Actual Costs Incurred $\backslash \backslash 22,000$ DLHs $\backslash$end$\{$tabular$\}$ & Flexible Budget Based on $22,000$ DLHs & Flexible Budget Based on $22,500$ DLHs & Total Variance & Spending Variance & $\backslash$begin$\{$tabular$\}\{$l$\}$ Efficiency $\backslash \backslash$ Variance $\backslash$end$\{$tabular$\}\backslash \backslash \backslash$hline Indirect labour & $\backslash$$ $0\mathrm{.}90$ & & & & U & U & F $\backslash \backslash \backslash$hline Supplies & $0\mathrm{.}15$ & & & & U & U & F $\backslash \backslash \backslash$hline Electricity & $0\mathrm{.}05$ & & & & F & F & F $\backslash \backslash \backslash$hline Total variable overhead cost & $\backslash$$ $1\mathrm{.}10$ & & & & U & U & F $\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}$