Complete the following table with common fraction, decimal fraction and percentage.

The common fraction given is $\frac{3}{4}$. To convert this to a decimal, divide the numerator by the denominator.

$$\frac{3}{4} = 3 \div 4 = 0.75$$

This matches the decimal fraction provided in the table.

To convert a decimal to a percentage, multiply the decimal by 100.

$$0.75 \times 100 = 75$$

The percentage is $75\%$.

The completed table entry for Percentage is $\boxed{75\%}$.