1. **Problem:** What percent is 3 out of 70? 2. **Formula:** To find what percent one number is of another, use the formula: $$\text{Percent} = \left(\frac{\text{Part}}{\text{Whole}}\right) \times 100$$ 3. **Apply the formula:** Here, the part is 3 and the whole is 70. $$\text{Percent} = \left(\frac{3}{70}\right) \times 100$$ 4. **Calculate the fraction:** $$\frac{3}{70} = 0.042857...$$ 5. **Multiply by 100:** $$0.042857... \times 100 = 4.2857...$$ 6. **Final answer:** 3 out of 70 is approximately **4.29%**. This means 3 is about 4.29 percent of 70.