Groupe Air uses two measures of activity, flights and passengers, in the cost formulas in its budgets and performance reports. The cost formula for plane operating costs is $36,100 per month plus $2,030 per flight plus $1 per passenger. The company expected its activity in October to be 70 flights and 220 passengers, but the actual activity was 69 flights and 225 passengers. The actual cost for plane operating costs in October was $175,010. The activity variance for plane operating costs in October would be closest to:

• $3,410 U

• $2,025 F

• $3,410 F

• $2,025 U