Challenge in the first week of July, a record 1,020 people went to the local swimming pool in the second week, 110 fewer people went to the pool than in the first week in the third week 130 more people went to the pool than in the second week. In the fourth week, 173 fewer people went to the pool than in the third week What is the percent decrease in the number of people who went to the pool over these four weeks?
The percent decrease of people who went to the pool is ___% kk