Table:
|  | Year Ended March 31, |  |
| --- | --- | --- |
|  | 2019 | 2018 |
| Projected benefit obligation at the beginning of the year | $61.0 | $50.4 |
| Additions due to acquisition of Microsemi | 9.8 | — |
| Service cost | 1.5 | 2.2 |
| Interest cost | 1.1 | 1.0 |
| Actuarial losses | 6.0 | 0.7 |
| Benefits paid | (0.9) | (0.8) |
| Foreign currency exchange rate changes | (5.8) | 7.5 |
| Projected benefit obligation at the end of the year | $72.7 | $61.0 |
| Accumulated benefit obligation at the end of the year | $66.7 | $55.5 |
| Weighted average assumptions |  |  |
| Discount rate | 1.41% | 1.73% |
| Rate of compensation increase | 2.79% | 2.91% |
Paragraphs:
The change in projected benefit obligation and the accumulated benefit obligation, were as follows (in millions):
The Company's pension liability represents the present value of estimated future benefits to be paid. The discount rate is based on the quarterly average yield for Euros treasuries with a duration of 30 years, plus a supplement for corporate bonds  consolidated balance sheets, will be recognized as a component of net periodic cost over the average remaining service period.
As the defined benefit plans are unfunded, the liability recognized on the Company's consolidated balance sheet as of March 31, 2019 was $72.7 million of which $1.3 million is included in accrued liabilities and $71.4 million is included in other long-term liabilities. The liability recognized on the Company's consolidated balance sheet as of March 31, 2018 was $61.0 million of which $0.9 million is included in accrued liabilities and $60.1 million is included in other long-term liabilities.
Question:
What was the change in Service cost between 2018 and 2019?
Answer: 1.5-2.2 = -0.7