the common difference between successive terms
To find the common difference we subtract the first term from second term
0.36, 0.26, 0.16, 0.06, –0.04, –0.14,
0.26 - 0.36 = -0.10
0.16 - 0.26 = -0.10
0.06 - 0.16 = -0.10
-0.04 - 0.06 = -0.10
-0.14 - (-0.04) = -0.10
We can see that the common difference is =0.10
the common difference between successive terms = -0.10