services at $40 per hour, for a total cost of $40,000. It was expected that these nurses would administer 400 flu shots and treat 1,600 flu patients. The medical group typically charges $50 for a flu shot and $80 for treating a flu patient. Actually, the group had 1,200 patients who received the flu shot and 1,400 who had the flu and received treatment. On average, it was able to collect $55 per flu shot and $70 per flu patient. Compute the volume, mix, and price revenue variances.