INCREASE IN PRICE. Until now, Brazen Copy has been manufacturing an umbrella stand for variable cost of $14.02 per unit, and has been selling this product at optimal price, given the product's demand equation. Now, however, rising component costs have pushed the total variable cost of one umbrella stand to $18.88. In dollar terms, BY HOW MUCH should Brazen Copy INCREASE ITS PRICE in order to maximize total profit on the umbrella stand, given the increase in variable cost? (Rounding: penny / two decimal places.)

Answer is 2.43... please show work