Table:
|  | Year Ended December 31, |  |  |
| --- | --- | --- | --- |
|  | 2019 | 2018 | 2017 |
| U.S. | $176.4 | $138.9 | $180.6 |
| Foreign | (50.0) | (65.9) | (73.8) |
| Incomefromcontinuingoperationsbeforeincometaxes | $126.4 | $73.0 | $106.8 |
Paragraphs:
Benefit for Income Taxes
Our benefit for income taxes includes U.S. federal, state and foreign income taxes. The domestic and foreign components of our income from continuing operations before income taxes were as follows:
Question:
What is the change in the average U.S. income from continuing operations before income taxes between 2017-2018 and 2018-2019? 
Answer: [(176.4+138.9)/2] - [(138.9+180.6)/2] = -2.1