notes to consolidated financial statements 2013 ( continued ) ( amounts in millions , except per share amounts ) the estimated future benefit payments expected to be paid are presented below .
domestic pension plan foreign pension plans domestic postretirement benefit plan .

Years
DomesticPension Plan
ForeignPension Plans
Domestic PostretirementBenefit Plan
2019
$14.5
$21.7
$3.0
2020
8.8
18.7
2.8
2021
8.0
19.8
2.6
2022
8.3
20.9
2.4
2023
7.8
21.8
2.2
2024 - 2028
36.7
117.2
9.8

the estimated future payments for our domestic postretirement benefit plan are net of any estimated u.s .
federal subsidies expected to be received under the medicare prescription drug , improvement and modernization act of 2003 , which total no more than $ 0.3 in any individual year .
savings plans we sponsor defined contribution plans ( the 201csavings plans 201d ) that cover substantially all domestic employees .
the savings plans permit participants to make contributions on a pre-tax and/or after-tax basis and allow participants to choose among various investment alternatives .
we match a portion of participant contributions based upon their years of service .
amounts expensed for the savings plans for 2018 , 2017 and 2016 were $ 52.6 , $ 47.2 and $ 47.0 , respectively .
expenses include a discretionary company contribution of $ 6.7 , $ 3.6 and $ 6.1 offset by participant forfeitures of $ 5.8 , $ 4.6 and $ 4.4 in 2018 , 2017 and 2016 , respectively .
in addition , we maintain defined contribution plans in various foreign countries and contributed $ 51.3 , $ 47.4 and $ 44.5 to these plans in 2018 , 2017 and 2016 , respectively .
deferred compensation and benefit arrangements we have deferred compensation and benefit arrangements which ( i ) permit certain of our key officers and employees to defer a portion of their salary or incentive compensation or ( ii ) require us to contribute an amount to the participant 2019s account .
these arrangements may provide participants with the amounts deferred plus interest upon attaining certain conditions , such as completing a certain number of years of service , attaining a certain age or upon retirement or termination .
as of december 31 , 2018 and 2017 , the deferred compensation and deferred benefit liability balance was $ 196.2 and $ 213.2 , respectively .
amounts expensed for deferred compensation and benefit arrangements in 2018 , 2017 and 2016 were $ 10.0 , $ 18.5 and $ 18.5 , respectively .
we have purchased life insurance policies on participants 2019 lives to assist in the funding of the related deferred compensation and deferred benefit liabilities .
as of december 31 , 2018 and 2017 , the cash surrender value of these policies was $ 177.3 and $ 177.4 , respectively .
long-term disability plan we have a long-term disability plan which provides income replacement benefits to eligible participants who are unable to perform their job duties or any job related to his or her education , training or experience .
as all income replacement benefits are fully insured , no related obligation is required as of december 31 , 2018 and 2017 .
in addition to income replacement benefits , plan participants may remain covered for certain health and life insurance benefits up to normal retirement age , and accordingly , we have recorded an obligation of $ 5.9 and $ 8.4 as of december 31 , 2018 and 2017 , respectively. .

Question: Analyse this data from a financial earnings document. what is the percentage decrease between the amounts expensed for deferred compensation and deferred benefit liability in 2017 and 2018?
Choices:
-37.05441
7.97373
170
-69.79362
79.12758
Correct choice index: 1