645 out of 842 = 76.60%
If you scored 645 points out of a possible 842 points, your percentage grade is 76.60%, which is a C letter grade with a GPA of 2.0.
Standard US Scale
4.0 Scale
Grade Description
Satisfactory - Meets basic requirements with some gaps in understanding.
Improvement Tips
- Identify and focus on your weaker areas
- Increase study time and create a regular schedule
- Seek help from teachers or tutors for difficult concepts
- Use multiple learning resources (videos, books, practice tests)
Detailed Grade Table
| Grade | Correct | Incorrect | Percent |
|---|---|---|---|
| A+ | 817 to 842 | 0 to 25 | 97.00 to 100.00 |
| A | 784 to 816 | 26 to 58 | 93.00 to 96.99 |
| A- | 758 to 782 | 60 to 84 | 90.00 to 92.99 |
| B+ | 733 to 757 | 85 to 109 | 87.00 to 89.99 |
| B | 699 to 732 | 110 to 143 | 83.00 to 86.99 |
| B- | 674 to 698 | 144 to 168 | 80.00 to 82.99 |
| C+ | 649 to 673 | 169 to 193 | 77.00 to 79.99 |
| C | 615 to 648 | 194 to 227 | 73.00 to 76.99 |
| C- | 590 to 614 | 228 to 252 | 70.00 to 72.99 |
| D+ | 565 to 589 | 253 to 277 | 67.00 to 69.99 |
| D | 531 to 564 | 278 to 311 | 63.00 to 66.99 |
| D- | 506 to 530 | 312 to 336 | 60.00 to 62.99 |
| F | 0 to 505 | 337 to 842 | 0.00 to 59.99 |
Your grade of 76.60% (C) is highlighted in the table above. The "Correct" and "Incorrect" columns show the equivalent number of questions for your total of 842 points.
To calculate 645 out of 842 as a percentage, you divide 645 by 842 and then multiply by 100:
This calculation gives you your percentage score, which can then be converted to a letter grade based on your school or institution's grading scale.
Step-by-step explanation:
- Divide the points earned (645) by the total points possible (842):
645 ÷ 842 = 0.7660 - Multiply the result by 100 to get the percentage:
0.7660 × 100 = 76.60% - Convert the percentage to a letter grade using the standard scale:
76.60% = C
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A score of 645 out of 842 (76.60%) has different implications depending on the educational context:
| Context | Interpretation |
|---|---|
| Homework Assignment | Adequate understanding with some gaps |
| Quiz or Test | Good preparation with some knowledge gaps |
| Final Exam | Solid understanding of core concepts |
| Course Grade | Satisfactory performance with room for improvement |
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