The way your gradebook will calculate course grades depends on how you have set it up. For more information on setting up the Gradebook, see Using categories and weighted grades in Gradebook. The following examples will help you understand how the different choices in ```Gradebook Setup``` will affect how students' course grades are calculated.

### Displaying grades as percentages with no categories and no weighting

In this example, the instructor has set up the gradebook with no categories and no weighting and has chosen to enter the grades as percentages. The course grade is calculated as follows:

Essay904540.5 (90% of 45)
Lab804536 (80% of 45)

Total: 90 points

Course grade: 85% [(40.5+36)/90 * 100)]

### Displaying grades as percentages with weighted categories

In this example, the instructor has set up the gradebook with weighted categories and has chosen to enter the grades as percentages. The course grade is calculated as follows:

#### Category Essays (70% weight)

Essay 150500.50 [50/(50+30+20)]25 (50*.50)
Essay 250300.30 [30/(50+30+20)]15 (50*.30)
Essay 350200.20 [20/(50+30+20)]10 (50*.20)

Total (Essays): 50% (25+15+10)

#### Category Labs (30% weight)

Lab 1100500.50 [50/(50+50)]50 (100*.50)
Lab 2100500.50 [50/(50+50)]50 (100*.50)

Total (Labs): 100% (50+50)

Overall course grade (Essays and Labs): 65%

 Essays 35% (70%*50%) Labs 30% (30%*100%) Total 65% (35%+30%)

### Displaying grades as points with weighted categories

In this example, the instructor has set up the gradebook with weighted categories and has chosen to enter the grades as points. The course grade is calculated as follows:

#### Category Essays (70% weight)

Note that in the Essays category the items have different point values (proportional weighting). Items with a higher point value have a greater influence on the grade (e.g., the 50-point essay has a much greater weight than the 20-point essay).

Essay 14550
Essay 21830
Essay 31520
Total78100

Total (Essays): 78% (78/100)*100

#### Category Labs (30% weight)

Items in the Labs category all have the same point value (equal weighting) and influence the grade equally.

Lab 12430
Lab 22130
Lab 31930
Total6490

Total (Labs): 71.11% (64/90)*100

Overall course grade (Essays and Labs): 75.93%

 Essays 54.6% (70%*78%) Labs 21.33% (30%*71.11%) Total 75.93% (54.6%+21.33%)

### Displaying grades as points with simple categories and no weighting

In this example, the instructor has set up the gradebook with simple (unweighted) categories and has chosen to enter the grades as points. The course grade is calculated as follows:

CategoryTotal earned (points)Total valueAverage (%)
Essays80 (41+27+12)90 (45+30+15)88.88% (80/90)
Labs100 (36+55+9)120 (45+60+15)83.33% (100/120)
Total 18021085.71%

Total: 180 points