Having heard about IPO underpricing, I put in an order to my broker for 1,010 shares of every IPO he can get for me. After 3 months, my investment record is as follows:

IPO	Shares Allocated to Me			Price per Share			Initial Return
A		510		$	11			6	%
B		210			20			11
C		1,010			9			2
D		0			12			24

a. What is the average underpricing in dollars of this sample of IPOs? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

b. What is the average initial return on my portfolio of shares purchased from the four IPOs that I bid on? When calculating this average initial return, remember to weight by the amount of money invested in each issue. (Do not round intermediate calculations. Enter your answer as a percent rounded to 1 decimal place.)