4. (6 points) Lantau Beer is a Hong Kong-based brewery and files all of its financial statements in Hong Kong dollars (HKS). The company's US sales director, Phillipp Boss, has been criticized for his performance. He disagrees, arguing that sales in US have grown steadily in recent years. Who is correct? 2010 2011 2012 Total net sales, HKS 333 575 387 500 444 900 Percent of total sales from US 37% 32% 30% Total US sales, HKS Average exchange rate, HKS/S Total US Sales, US dollar (S) Growth rate of US sales 8,5 8,7