Final answer:
The sales revenue flexible budget variance measures the difference between the actual sales revenue and the flexible budget revenue. In this case, the actual revenue is higher than the flexible budget revenue, resulting in a favorable variance of $6,120.
Step-by-step explanation:
The sales revenue flexible budget variance measures the difference between the actual sales revenue and the flexible budget revenue. It helps in evaluating how well a company is meeting its sales revenue target. In this case, the estimated sales revenue was calculated by multiplying the estimated sales volume (150,000 units) by the estimated selling price ($6.00), resulting in an estimated revenue of $900,000. The actual sales revenue was calculated by multiplying the actual sales volume (149,000 units) by the actual selling price ($6.12), resulting in an actual revenue of $912,720.
To calculate the sales revenue flexible budget variance, subtract the actual revenue from the flexible budget revenue: $912,720 - $900,000 = $12,720. Since the actual revenue is higher than the flexible budget revenue, the variance is favorable. Therefore, the correct answer is option A. $6,120 favorable.