In three successive years the price of the common shares of Abysmal Resources Ltd. fell 35%, 55%,

Question:

In three successive years the price of the common shares of Abysmal Resources Ltd. fell 35%, 55%, and 80%, ending the third year at 75 cents.
a. What was the share price at the beginning of the three-year skid?
b. How much (in dollars and cents) did the share price drop in the third year?