The restaurant at the Hotel Galaxy offers two choices for breakfast: an all-you-can-eat buffet and an a la carte option, where diners can order from the menu. The buffet option has a budgeted meal price of $50. The a la carte option has a budgeted average price of $39 for a meal. The restaurant manager expects that 40 percent of its diners will order the buffet option. The buffet option has a budgeted variable cost of $30 and the a la carte option averages $25 per meal in budgeted variable cost. The manager estimates that 2, 600 people will order a meal in any month. For July, the restaurant served a total of 2, 400 meals, including 940 buffet options. Total revenues were $47, 940 for buffet meals and $61, 320 for the a la carte meals. Required: a. Compute the volume variance (also known as activity variance) for the restaurant for July