A 75 might not seem bad, but it can still lower your grade if the assignment is worth a lot.
Use this calculator to find your exact grade:
Final Grade CalculatorExample 1:
Current grade: 92
Test weight: 20%
Score: 75
→ New grade: ~88.6
Example 2:
Current grade: 85
Test weight: 30%
Score: 50
→ New grade: ~74.5