1. **State the problem:** We need to find what percent of the nonfiction book sales were travel books. 2. **Identify the data:** The frequencies of nonfiction book sales are: - Biography: 14 - Cooking: 11 - Travel: 7 - History: 10 - Science: 8 3. **Calculate the total number of nonfiction books sold:** $$14 + 11 + 7 + 10 + 8 = 50$$ 4. **Use the percent formula:** $$\text{Percent} = \left(\frac{\text{Part}}{\text{Whole}}\right) \times 100$$ 5. **Plug in the values:** $$\text{Percent of travel books} = \left(\frac{7}{50}\right) \times 100$$ 6. **Simplify the fraction:** $$\frac{7}{50} = \frac{\cancel{7}}{\cancel{50}} \text{ (no common factors to cancel)}$$ 7. **Calculate the percent:** $$\left(\frac{7}{50}\right) \times 100 = 14$$ 8. **Final answer:** 14% of the nonfiction book sales were travel books.