Vulcan Flyovers offers scenic overflights of Mount Saint Helens, the volcano in Washington State that explosively erupted in 1982 . Data concerning the company's operations in July appear below: The company measures its activity in terms of fights. Customers can buy individual tickets for overlights or hire an entire plane for an overfight at a discount. Required: 1. Prepare a flexible budget performance report for July that includes revenue and spending variances and activity variances. (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.)