Answer:
$2,000,000
Explanation:
current awareness of Digby's Don = 72%
next year it will decrease to 72% - 1/3 = 48% if the firm does nothing
Don's competition, Axe, has an awareness level of 77% and it should remain the same next year. So, Digby as to spend at least $2,000,000 to earn more awareness than Axe. Don's awareness level will be 93%.