According to an article on barrons.com, earnings increased for Starbucks in early 2019 partly because of lower variable costs due to “streamlined operations.” Draw a graph showing the effect of this cost decline on the price of a Starbucks cappuccino, on the quantity of cappuccinos a representative Starbucks coffeehouse sells, and on the profit of this Starbucks coffeehouse. Be sure that your graph includes this coffeehouse’s demand, marginal revenue, marginal cost, and average total cost curves. Your graph should show changes in any of the curves. For simplicity, assume that the demand for Starbucks cappuccinos is unchanged.