1. The problem asks to find 3% of 84. 2. To find a percentage of a number, use the formula: $$\text{Percentage value} = \frac{\text{percentage}}{100} \times \text{total number}$$ 3. Here, the percentage is 3 and the total number is 84. 4. Substitute the values into the formula: $$\frac{3}{100} \times 84$$ 5. Multiply the numerator and denominator: $$\frac{3 \times 84}{100} = \frac{252}{100}$$ 6. Simplify the fraction by dividing numerator and denominator by 4: $$\frac{\cancel{252}^\div{4}}{\cancel{100}^\div{4}} = \frac{63}{25}$$ 7. Convert the fraction to a decimal by dividing 63 by 25: $$63 \div 25 = 2.52$$ 8. Therefore, 3% of 84 is $2.52$.