You can use this utility to calculate and extrapolate your grade in LB 273. The relevant details of percentages and other grade-related issues can be found in the course syllabus.
Midterm exam notes:
"Exam score (in-class)" = the points you received on the exam,
including your "correction problem".
"Makeup question (in class)" = the points you received for the problem
that you corrected (not the total points - just the points you received!).
"Makeup question (corrected)" = the points you received for the
"correction problem" that was turned in after the exam was completed.
Disclaimer: This grade calculator is for informational purposes only, and is not binding. In case of errors in this calculator, the syllabus establishes the authoriative grading scheme for this course.