1. The problem asks: What percentage is 24 of 80? 2. The formula to find what percent a number $a$ is of another number $b$ is: $$\text{Percentage} = \left(\frac{a}{b}\right) \times 100$$ 3. Substitute $a=24$ and $b=80$ into the formula: $$\text{Percentage} = \left(\frac{24}{80}\right) \times 100$$ 4. Simplify the fraction $\frac{24}{80}$ by dividing numerator and denominator by their greatest common divisor, which is 8: $$\frac{\cancel{24}^{3}}{\cancel{80}^{10}}$$ 5. Now the expression is: $$\left(\frac{3}{10}\right) \times 100$$ 6. Multiply: $$\frac{3}{10} \times 100 = 3 \times 10 = 30$$ 7. Therefore, 24 is 30% of 80.