The nth term of an arithmetic sequence is given as:

Where
a_1 is first term
d is common difference (diff between terms)
n is the term number
Now,
in the sequence, we see
First Term = 2
Common DIff = 24 - 2 = 22 and 46 - 24 = 22, so Common Difference = 22
So, the general formula is:
The factor of 48 are : 1,2,3,4,6,8,12,16,24,48
The prime factor are : 2x2x2x2x3
**IF YOU WANT TO KNOW WHAT THE DIFFERENCE IS BETWEEN 80% AND 60%
80% - 60 % is the same as 80 - 60.
80 - 60 = 20
So 20% is the answer.