You have finished reviewing quizzes from a digital marketing workshop. One learner scored 11 out of 15 on SEO basics, another got 10 out of 12 on email marketing, and someone wants to know whether 86.67% meets the course’s passing requirement. The answers are marked, but there are still numbers to work through before you can share the results.
Whether you teach marketing, create online courses, or train an agency team, a grading chart gives you a reference for converting scores into percentages. Once you know the total possible score, you can use the same table for everyone who completed that assessment.
The arithmetic is the same as it is in a classroom. The useful part for marketing trainers is turning those results into clear feedback: which concepts learners understand, which answers need explanation, and what to revisit in the next session.
Where grading charts fit into digital marketing training
A short quiz can check understanding after a lesson on keyword research, paid advertising, social media, or analytics. For example, you might ask learners to identify search intent, choose a suitable campaign objective, or interpret a sample report.
A percentage makes the result easier to read, but it does not tell the whole story. Two people can both score 80% while missing questions on different topics. Keep the individual answers alongside the total so you can give feedback that addresses each learner’s gaps.
Use quizzes to check knowledge, then pair them with practical work where appropriate. Writing an ad, reviewing a landing page, or explaining campaign results requires judgment that a simple right-or-wrong score cannot fully capture.
What does a grading chart show?
A grading chart, sometimes called a grading table or score chart, connects the number of correct answers with a percentage. Some charts also show questions missed and a corresponding letter grade.
The total matters. Missing two questions on a six question quiz produces a very different percentage from missing two on a test with 40 questions.
It also helps to distinguish a grading percentage chart from a letter grading scale. The percentage chart answers, “What proportion of the available marks did the student earn?” The grading scale tells you how that percentage translates into an A, B, C, or another designation under your course’s policy.
The first is a calculation. The second depends on the rules used for the class.
How to calculate a test grade
For a quiz where every question carries the same value and answers receive either full credit or no credit, use this formula:
Percentage score = Correct answers ÷ Total questions × 100
If a learner answers 17 questions correctly out of 20 on a digital marketing quiz, the calculation is:
17 ÷ 20 × 100 = 85%
For an assessment with different point values, calculate the percentage using marks instead:
Percentage score = Points earned ÷ Total possible points × 100
A learner who earns 36 points out of 45 receives 80%, regardless of how many individual questions appear on the paper.
This distinction matters when a test includes a mixture of short answers, extended responses, and questions with partial credit.
Calculating a grade from questions missed
Trainers often count incorrect answers while marking quizzes. To calculate the score, subtract the questions missed from the total, then convert the correct answers into a percentage.
Suppose a learner gets four wrong out of 18. That leaves 14 correct answers.
14 ÷ 18 × 100 = 77.78%, rounded to two decimal places.
Here, 77.78% is the percentage correct. The percentage incorrect is 22.22%. Keeping those two figures separate prevents an easy mistake when using a paper grading calculator or reading a grading grid.
This method assumes that all 18 questions have equal value and none receives partial credit.
A grading table for common test scores
Some fractions are easy to recognize. Others take a little more calculation. This grade percentage chart brings together examples you can use for course quizzes and training assessments.
Percentages are rounded to two decimal places where necessary. Letter grades are left out because the applicable scale can vary.
| Score earned | Percentage |
| 3 out of 5 | 60% |
| 5 out of 8 | 62.50% |
| 7 out of 8 | 87.50% |
| 7 out of 9 | 77.78% |
| 8 out of 10 | 80% |
| 7 out of 11 | 63.64% |
| 8 out of 11 | 72.73% |
| 9 out of 11 | 81.82% |
| 8 out of 12 | 66.67% |
| 9 out of 12 | 75% |
| 10 out of 12 | 83.33% |
| 10 out of 13 | 76.92% |
| 11 out of 13 | 84.62% |
| 9 out of 14 | 64.29% |
| 11 out of 14 | 78.57% |
| 15 out of 18 | 83.33% |
| 12 out of 20 | 60% |
| 14 out of 20 | 70% |
| 15 out of 20 | 75% |
| 19 out of 24 | 79.17% |
| 15 out of 25 | 60% |
| 20 out of 25 | 80% |
| 22 out of 25 | 88% |
| 24 out of 30 | 80% |
| 26 out of 30 | 86.67% |
| 37 out of 40 | 92.50% |
Notice that different raw scores can produce the same percentage. A score of 9 out of 12 equals 75%, just like 15 out of 20. The learner earned the same proportion of the available marks, even though the assessments had different totals.
Understanding a 15 question grading scale
On a test with 15 equally weighted questions, each question represents approximately 6.67 percentage points. That makes each missed answer fairly significant.
The table below shows the percentage for every possible whole question score.
| Correct answers | Questions missed | Percentage |
| 15 | 0 | 100% |
| 14 | 1 | 93.33% |
| 13 | 2 | 86.67% |
| 12 | 3 | 80% |
| 11 | 4 | 73.33% |
| 10 | 5 | 66.67% |
| 9 | 6 | 60% |
| 8 | 7 | 53.33% |
| 7 | 8 | 46.67% |
| 6 | 9 | 40% |
| 5 | 10 | 33.33% |
| 4 | 11 | 26.67% |
| 3 | 12 | 20% |
| 2 | 13 | 13.33% |
| 1 | 14 | 6.67% |
| 0 | 15 | 0% |
If you are checking an 11/15 grade, the percentage is 73.33%. A 10/15 grade is 66.67%, while 13/15 is 86.67%.
Calculate each result from the original fraction. Multiplying a rounded value of 6.67 by the number of correct answers can introduce small inaccuracies.
Why short quizzes have larger percentage jumps
A six question grading scale has only seven possible scores when answers receive either full credit or no credit.
| Correct answers | Percentage |
| 6 out of 6 | 100% |
| 5 out of 6 | 83.33% |
| 4 out of 6 | 66.67% |
| 3 out of 6 | 50% |
| 2 out of 6 | 33.33% |
| 1 out of 6 | 16.67% |
| 0 out of 6 | 0% |
One missed question lowers the score by approximately 16.67 percentage points. On a seven question quiz, each question represents about 14.29 percentage points. On a 20 question test, each is worth five.
This is worth explaining when learners compare results from different assessments. Getting one question wrong does not always have the same effect on the percentage.
A grading chart for learners can make that relationship easier to see, especially when you show the original score alongside the percentage.
Converting percentages into letter grades
A percentage to letter grade conversion requires a defined grading scale. There is no single letter grade that applies to every training provider or course.
For illustration, a digital marketing course might use this scale:
| Percentage | Letter grade |
| 90% to 100% | A |
| 80% to less than 90% | B |
| 70% to less than 80% | C |
| 60% to less than 70% | D |
| Below 60% | F |
Under this example, 86.67% is a B, 75% is a C, and 60% is a D.
Your training provider may use different boundaries, plus and minus grades, or a simple pass/fail system. Apply the published course policy before assigning a result.
The same applies to rounding. A score of 89.5% does not automatically become an A. Whether it is rounded before assigning a letter grade depends on the stated rules for the course.
Where an easy grader calculator fits into marking
Once you are checking a full group of quizzes, repeating the same division becomes tedious. An easy grader calculator or a prepared grading table can help with the arithmetic.
Before using any online grading tool, check whether it expects correct answers, incorrect answers, or points earned. Then confirm that the total matches the assessment you are marking.
For a grading resource to keep alongside your course materials, you can bookmark Teacher Grade Calculator. Before relying on any calculator, check a familiar result first, such as 15 out of 20 equaling 75%.
A score calculator handles the numerical conversion. The trainer still needs to evaluate the answers, award marks, and apply the appropriate grading policy. For a written campaign recommendation or an explanation of an analytics report, the marking rubric determines how much credit the response earns.
How to handle half points and partial credit
When a learner earns partial credit, calculate the grade from points rather than simply counting fully correct answers.
Suppose a quiz is worth 20 points and a learner earns 15.5.
15.5 ÷ 20 × 100 = 77.5%
Rounding the earned score down to 15 would produce 75%. Rounding it up to 16 would produce 80%. Both change the result, so retain the half point unless the assessment policy says otherwise.
If you need an easy grader with half points, check that the tool accepts decimal inputs. A whole question grading table will not show every possible partial credit score.
The same principle applies when questions have different values. Missing a five point response should not be treated as equivalent to missing a one point question.
Keeping digital marketing assessments consistent
Before marking a batch of papers, confirm the total available points, the credit allowed for incomplete answers, and the rounding rule you will use. Those decisions should stay consistent across the assessment.
Check the total again if you remove a question. For example, if a one point question is excluded from a 20 point quiz, the remaining assessment is worth 19 points, unless your policy handles the adjustment differently.
It also helps to record the original score alongside the percentage. “17 out of 20, 85%” gives learners more information than a percentage alone and makes later checks easier.
For your regular marking routine, keep the answer key, grading rubric, and percentage chart together in your training resources. Having the relevant materials in one place makes it easier to establish a repeatable process.
Turning quiz results into useful training feedback
After calculating scores, review the questions learners missed. If several people struggle with the same analytics question, check whether the wording was clear and revisit the underlying concept. If one learner misses questions about search intent, offer a focused practice task on that topic.
Compare results across sessions carefully. A higher percentage on an easier quiz does not automatically show improvement. Keep the topic coverage and difficulty reasonably consistent when using scores to track progress.
Finally, keep training scores separate from campaign performance. An 85% quiz score describes performance on that assessment; it does not measure return on ad spend, conversion rate, or readiness to manage a client account independently. Combine quiz feedback with practical exercises to build a fuller picture of someone’s skills.
Common questions about training quiz scores
What grade is 26 out of 30?
A score of 26 out of 30 is approximately 86.67%. Under the illustrative scale above, that is a B. The actual letter grade depends on your course policy.
What is 11 out of 15 as a percentage?
Eleven divided by 15, multiplied by 100, gives approximately 73.33%. Under the example scale, it falls in the C range.
What is a 10 out of 12 grade?
Ten out of 12 equals approximately 83.33%. It would be a B under the example scale.
Is 7 out of 8 the same as 87.5%?
Yes. Dividing seven by eight gives 0.875, which converts to 87.5%.
What grade is 17 out of 17?
Seventeen out of 17 equals 100%. The learner earned all available marks on that assessment.
Can I use the same grading chart for every test?
A chart based on questions correct can be reused when tests have the same number of equally weighted questions and the same scoring rules. A test with a different total needs a different percentage table. Letter grades must also follow the scale used for that class.
Is a quiz score the same as an overall course grade?
No. A test percentage describes performance on one assessment. An overall course grade may combine assignments, quizzes, practical projects, and exams using total points or category weights. You need those additional scores and rules to calculate the course result.