(10 pto The Costner Company held a party. The company expected an attendance of 100 people and prepared the following budget: Hotel room rental Food Entertainment Decorations Total Costs $600 500 800 I 300 $2.200 One hundred people attended the party. The costs incurred were: Hotel room rental Food Entertainment Decorations Total Costs $575 640 750 350 $2315 A. What is the variance for total costs and it's favorable or unfavorable? B. What is the primary reason for the variance in total costs?