16.22 An engineer. with Accenture Middle East BV in Dubai was asked by her client to help him understand the difference between 150% DB and DDB depre- ciation. Answer these questions if B = $180,000, n = 12 years, and S = $30,000. (a) What are the book values after 12 years for both methods? (b) . How do the estimated salyage and these book values compare in value after 12 years? Which of the two methods, when calculated (c) correctly considering S = $30,000, writes off more of the first cost over 12 years