In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%,

Question:

In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%, and 70%, ending the third year at 50 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 second year?

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