$-$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:

actual results flights $48$ revenue $13,650$ wages and salaries $8430$ fuel $1260$ airport fees $2350$ aircraft depreciation $336$ office expenses $460$ total expense $12,836$ net operating income $814$

flexible budget flights $48$ revenue $15360$ wages and salaries $7936$ fuel $1104$ airport fees $2474$ airport depreciation $336$ office expenses $286$ total expense $12136$ net operating income $3224$

planning budgets flights $50$ revenue $16000$ wages and salaries $8100$ fuel $1150$ airport fees $2550$ aircraft depreciation $350$ office expenses $290$ total expense $12440$ net operating income $3560$

the company measures its activity in terms of flights. Customers can buy individual tickets for overflights or hire an entire plane for an overflight at a discount. Prepare a flexible budget performance report for July that includes revenue and spending variances and activity variances.