Each proficiency level is worth a certain number of points. PowerSchool thinks of these on a scale of 0-100.
| Standard Score | Value |
| E | 100 |
| P | 80 |
| A | 60 |
| N | 40 |
| I | 0 |
For each standard, the average of the three most recent scores is converted to a number out of 100. This average is displayed on each standard as an E, P, A, N, or I, depending on predetermined ranges set by NCPA.
| Standard 1 | Standard Value |
| 3rd most recent: E | 100 |
| 2nd most recent: P | 80 |
| Most recent: E | 100 |
| Overall Standard Score | 93.333 = E |
The ranges set by NCPA for each proficiency level are as follows:
| Range 0-100 | |
| E | 90-100 |
| P | 70-89.99 |
| A | 50-69.99 |
| N | 30-49.99 |
| I | 0-29.99 |
The final course grade is determined by calculating the average of the numerical value of each overall standard score. An example is provided below:
Click here to see the Grade Calculator Spreadsheet. You can download it and then enter individual assignment standard scores to see how the overall standard score and overall course grade are calculated.