Ruby Krisher Diner is a charity supported by donations that provides free meals to the homeless. The diner's budget for May was based on $3,100$ meals, but the diner actually served $3,300$ meals. The diner's director has provided the following cost data to use in the budget: groceries, $$4\mathrm{.}45$ per meal; kitchen operations, $$5,100$ per month plus $$1\mathrm{.}77$ per meal; administrative expenses, $$4,100$ per month plus $$0\mathrm{.}42$ per meal; and fundraising expenses, $$2,100$ per month.

Required:

Prepare a report showing the activity variances for each of the expenses and for total expenses for May.

Note: Input all amounts as positive values. Indicate the effect of each variance by selecting $"$F$"$ for favorable, $"$U$"$ for unfavorable, and "None" for no effect $($i$.$e$.,$ zero variance$).$

$\backslash$table$[[$Rub Krisher Diner$],[$Activity Variances$],[$For the Month Ended May $31],[,$Flexible Budget,Planning Budget,Activity Variances$],[$Meals$,3,300,3,100,],[$Groceries$,a,-1,],[$Kitchen operations$],[$Administrative expenses,,,.$],[$Fundraising expenses$],[$Total expense,,,$]]$