Answer:
Certainly! Here's a Python program that calculates the average of three test scores entered by the user and displays the result as a percentage.
```python
# Prompt the user to enter the three test scores
score1 = int(input("Enter score 1 (out of 100): "))
score2 = int(input("Enter score 2 (out of 100): "))
score3 = int(input("Enter score 3 (out of 100): "))
# Calculate the average as a percentage
average = (score1 + score2 + score3) / 3
# Display the average with the % symbol
print("Average score: {:.2f}%".format(average))
```
In this program, we use the `input()` function to prompt the user to enter the three test scores. Each score is converted to an integer using the `int()` function to ensure numeric calculations. The average is calculated by summing the scores and dividing by 3. The `print()` function is used to display the average with two decimal places and the `%` symbol.
Step-by-step explanation: