Month. Required: Insurance should be $6,700 per month. Supplies should be $0.60 per customer served. Revenue should be $2.90 per customer served. During October, Luxor Corporation budgeted for 3,000 to 33,000 customers. Prepare the company's flexible budget for October based on the actual level of activity. Miscellaneous expenses should be $3,100 per month plus $0.10 per customer served. Wages and salaries should be $27,200 per month plus $0.80 per customer served.