1. **State the problem:** Several years ago, Clair bought a comic book for 10. At a recent auction, it sold for 200. We need to find what percent the new value (200) is of the original price (10). 2. **Formula used:** To find what percent one number is of another, use: $$\text{Percent} = \left(\frac{\text{New Value}}{\text{Original Value}}\right) \times 100$$ 3. **Apply the formula:** $$\text{Percent} = \left(\frac{200}{10}\right) \times 100$$ 4. **Simplify the fraction:** $$\frac{200}{10} = \cancel{\frac{200}{10}}^{20}$$ 5. **Calculate the percent:** $$20 \times 100 = 2000\%$$ 6. **Interpretation:** The new value is 2000% of the original price, meaning it is 20 times the original price. 7. **Final answer:** The new value is 2000% of the original price.