A companys annual report states that its common shares had price gains of 23%, 10%, -15%, and

Question:

A company’s annual report states that its common shares had price gains of 23%, 10%, -15%, and 5% during the preceding four fiscal years. The share price stood at $30.50 after last year’s 5% gain.
a. What was the price of the shares at the beginning of the four-year period?
b. How much (in dollars and cents) did the share price decline in the third year?