5 A stock had returns of 2.9 percent, 5.4 percent, -4.7 percent, -0.6 percent, -5.4 percent, and -8.1 ___% percent over the past six years. What is the arithmetic average return for this time period? Instruction: Enter your response as a percentage with two decimal places. For example, if your answer is 0.1213-12.13%, please only enter "12.13", please do not enter "0.1213" or "12.13% ", the system may not recognize the % sign. You may put negative signs if necessary, 35 NOV 18 atv de Air ON A C