A stock has had returns of 18.6 percent, 28.6 percent, 19.2 percent, 9.7 percent, 34.4 percent, and 26.6 percent over the last six years. Required: What are the arithmetic and geometric returns for the stock? (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16).) Arithmetic average return % Geometric average return %