Answer:
Part 1: 300
Part 2: Refer to Step-by-step explanation.
Explanation:
Part 1: Triples means multiplying by three, and percent means over 100. 300% means tripling.
300%
Part 2: I'm not sure what the problem means, but if it means the original price, then it is c/3 or 1/3c. If it is referring to the resale price, then it is 300%c or 3c.