Step 1: Start with the fraction 4/80.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

4 ÷ 80 = 0.05

Step 3: Multiply the result by 100 to get the percentage.

0.05 × 100 = 5.0%

Final Answer: 4/80 as a percentage is 5.0%.