Polycom Systems earned $487 million last year and paid out 24 percent of earnings in dividends. a. By how much did the company's retained earnings increase? Note: Do not round intermediate calculations. Input your answer in dollars, not millions (e.g., \$1,234,000). b. With 100 million shares outstanding and a stock price of $163, what was the dividend yield? (Hint: First compute dividends per share.) Note: Do not round intermediate calculations. Input your answer as a percent rounded to 2 decimal places