A senior citizen gets a part-time job at a fast-food restaurant. She earns $10 per hour for each hour she works, and she works exactly 29 hours per week. Thus, her total pretax weekly income is $290. Her total income tax assessment each week is $45, but she has determined that she is assessed $4 in taxes for the final hour she works each week. This person's average tax rate each week is percent. (Round your answer to one decimal place)