The following is a chart of sales for used cars at ACME Used Cars over the last 6 weeks: Week 1 Week 2 Week 3 Week 4 Week 5 Week 5 22 1 5 36 2 5 28 34 During week 2, a severe thunderstorm caused a power outage in much of the area. As a result, between weeks 1 and 2, sales declined by :|%_ (Enter your response rounded to one decimal place.)