**Introduction:** The Grade Test Calculator is a simple and effective tool designed to help individuals calculate their test grade percentage based on earned marks and total marks. This article introduces the calculator, providing insights into its purpose and guiding users on how to use it effectively.

**Formula:** Calculating the test grade percentage involves dividing the earned marks by the total marks and then multiplying the result by 100 to obtain a percentage. This formula provides a clear representation of a student’s performance on a test.

**How to Use:**

- Enter the earned marks in the first input field.
- Input the total marks in the second input field.
- Click the “Calculate” button to obtain your test grade percentage instantly.

**Example:** If you earned 40 marks out of a total of 50, enter “40” for the earned marks and “50” for the total marks. Click “Calculate,” and the test grade percentage will be displayed.

**FAQs:**

*Q: Can I use this calculator for any grading system?*A: Yes, it is adaptable to various grading scales and systems.*Q: What if I enter a negative number or zero for earned marks or total marks?*A: An error message will remind you to enter valid values greater than zero.*Q: Is there a limit to the values I can input for earned marks and total marks?*A: Earned marks should be a non-negative number less than or equal to total marks, which should be a positive number.*Q: Can I use decimals for the earned marks and total marks?*A: Yes, you can use decimals for a more precise calculation.*Q: What happens if I enter more earned marks than the total marks?*A: An error message will prompt you to enter valid values within the appropriate range.

**Conclusion:** The Grade Test Calculator is a valuable resource for students seeking to assess their performance on a test. By providing a quick and efficient way to calculate test grades, this calculator enhances the accuracy and speed of grade calculations, allowing students to gauge their progress effectively.