How do you calculate percentage change between sequential elements in array?

I have a 14400x11 array of values from the output of a hyperbolic function and want to calculate the sequential percentage change from, for example, the first element in the first row and column a(i,j) to the second element in the second row and first column a(i+1,j). How can I do this?

Answer 1

[A Jenkins]

X=rand(3,4)

percent_change=diff(X)./X(1:end-1,:)

[txvmi07]

Thanks very much!

Answer 2

[dpb]

pct=100*diff(a(:,1))./a(1:end-1,1);

[txvmi07]

Thanks very much!