Answer:
$45; $50
Explanation:
Given that,
Quantity sold (at price = $50 per bottle) = 10 bottles of champagne
Quantity sold (at price = $45 per bottle) = 11 bottles of champagne
Therefore,
Quantity effect (keeping the price unchanged):
= (11 - 10) × $45
= $45 Â
Price effect (keeping the quantity unchanged):
= ($45 - $50) × 10
= - $50
Hence, total revenue experiences an increase of $45 and a decrease of $50.