Insert certain percentages of missing values in a dataset

I have a dataset with a certain dimension. For example 600x10. I want to insert missing values randomly in the dataset in certain percentages such as 10% or 20%.

Can anyone help please? Thank you.

Answer 1

[KSSV]

A = rand(600,10) ;  % demo data 
N = numel(A) ;      % number of elements 
idx = randperm(N,10/100*N) ; % get 10% of data indices randomly 
A(idx) = NaN ; % replace the indices with NaN, these are missing 

[MOHAMAD FAIZ DZULKALNINE]

Wow, thank you so much for the swift help. Really appreciate it.

[KSSV]

Thanks is accepting/ vorting the asnwer.