The problem asks us to convert the fraction $\frac{4}{5}$ into a percentage.

1. Problem Description

The problem asks us to convert the fraction $\frac{4}{5}$ into a percentage.

2. Solution Steps

To convert a fraction to a percentage, we can first convert the fraction to a decimal.

To do this, we divide the numerator by the denominator:

$\frac{4}{5} = 4 \div 5 = 0.8$

Next, to convert a decimal to a percentage, we multiply the decimal by 100%.

$0.8 \times 100\% = 80\%$

3. Final Answer

$80\%$