How much will a 78% effect my grade if I have a 97%right now

Answer 1

The effect the 78% grade will have on your current 97% depends on how many scores are involved in calculating the 97%.

Suppose you had just one test score of 97% followed by the 78%. Your average then would be:

(97+78)/2 = 87.5 nearly a drop of 10%.

Now suppose that your current 97% was achieved based on 10 test scores. That means the average of your 10 test scores was determined by adding up the 10 scores and dividing by 10. If we let S₁₀ represent the sum of your 10 test scores, then S₁₀/10 = 97, i.e. S₁₀ = 970. After taking your 11th test and getting a score of 78% the new average would be calculated like this:

(S₁₀ + 78) / 11

(970 + 78) / 11

About 95.3% not even a drop of 2%.

The more scores used to create your current 97%, the less effect the latest 78% score has on your overall average.

Answer 2

78% affects your 97% depending on how much weight is assigned

if you have a final exam left to go and that exam is equal weight with your grade so far, then

(78+97)/2= 175/2 = 87.5% as your final grade

if 78 has weight = a, and 97 has weight b

then final grade = (78a+97b)/(a+b)

Answer 3

It depends on how many points the current assignment is worth compared to the number of points offered in the course. I'd like to tell you not much. But it really depends.

Actual Points Possible Points Percentage

Prior Grade 485 500 0.97

Assignment Score 78 100

New Course Total 563 600 0.938333333

Impact 0.031666667