Just VBA code please

Permutation is a combination of data where order is important. Use this equation to compute permutation of 22 data points sampled 3 at a time. (e.g. n = 22, r = 3) n! Hand calculate AND create a VBA coding to solve this problem. Validate hand calculations with simulated output and report all results in a professional table. Remember, you MUST use for- loops to solve this