State which method is more appropriate for the situation. select a method Geometric mean OR Arithmetic average

Calculate the annual arithmetic mean and geometric mean return on the following security, purchase price = $20; first-year dividend = $2; price after one year = $25; second-year dividend = $2; selling price after two years = $18. (Round intermediate calculations to 3 decimal places, e.g. 15.251% and the final answers to 2 decimal places, e.g. 15.25%.) Arithmetic average return % Geometric mean return %