Calculate mean percentage difference from vectors

I have two vectors

A = [0.0867 0.2838 0.2586 NaN 0.2550 0.5621 0.3236]

B = [0.2212 0.3587 0.7341 0.6815 0.4522 1.3072 0.6816]

I would like calculate the mean percentage difference

I.e. desired outcome : "B over(under)estimate A by 14%" and "B is greater(or less) than A 70% over length(A)"

mean_diff = some_function(A,B) = 14 (in %)

[madhan ravi]

What’s your dersired result of the above ? Give an example of your output.

[Tumelo Maja]

See the bottom line

Answer 1

[Image Analyst]

Did you try

mean((B - A) ./ A - 1, 'omitnan')

??? It gives 0.1432. It sounds a lot like homework so in case it is, I'll let you finish making it into a function and using an if statement and fprintf() to print out the desired ""B over(under)estimat ....." string.