Can someone me i've been stuck on this for hours i mean i know would mean median and mode means but i'm just

To find the mean : Add up all the numbers and divide the numbers they have for an example 1+4+7+8=20 and there are 4 numbers and 20/4 is 5

Full
Mean = 78
Median = 80.5
Mode = 58

The mean is the average of the number set.  (Add all values together, then divide by the number of values in the list).
The median is the "middle" number.  In a list with an odd number of values, arrange the numbers in numerical order (least to greatest), then find the number that lies in the middle of the list.  In a list with even numbers, do the same as you would with an odd set, but take the two middle values and average them (add together then divide by two).
The mode is the number in the list that repeats the most.  In this case, 58 is the only number that is listed more than once, so it is the mode.

Hope this helps!  If it did, would you mind marking this answer as Brainliest? Thanks :D

It is 6% because if you subtract 69-58=6 so 6% is the answer to your question.