A{2,...,n) = x2,...,xn, B{n=2,...n) is of the form =A{n}-A{n-1} and C{n} is =B{n}/a{n-1}
Row n+1 and n+2 are empty to allow copying of n+3 to n+4 when data is entered in A{n+1}: Now
A{n+3} has =MAX(A$2:A{n}) it's flagged every time I move it to say "Omits adjacent cells".