Sales Revenues Variable Expenses ACTUAL 465.000 280.000 165.000 20.000 FLEXIBLE BUDGET 450 000 270,000 170.000 500,000 300,000 170.000 30.000 Operating income 10,000 Barlow investigates flexible budget variances for revenues or expenses if they are greater than 10% of the flexible budget. Which flexible budget variance should be investigated? Sales revenues Variable expenses Fixed expenses None of these