9 . lease commitments the company leases certain land , facilities , equipment and software under various operating leases that expire at various dates through 2057 . the lease agreements frequently include renewal and escalation clauses and require the company to pay taxes , insurance and maintenance costs . total rental expense under operating leases was approximatelya $ 92.3 million in fiscal 2019 , $ 84.9 million in fiscal 2018 and $ 58.8 million in fiscal 2017 . the following is a schedule of futureff minimum rental payments required under long-term operating leases at november 2 , 2019 : operating fiscal years leases .

operating leases: 2020: 79789
2021: 67993
2022: 40338
2023: 37673
2024: 32757
later years: 190171
total: 448721

10 . commitments and contingencies from time to time , in the ordinary course of the company 2019s business , various claims , charges and litigation are asserted or commenced against the company arising from , or related to , among other things , contractual matters , patents , trademarks , personal injury , environmental matters , product liability , insurance coverage , employment or employment benefits . as to such claims and litigation , the company can give no assurance that it will prevail . the company does not believe that any current legal matters will have a material adverse effect on the company 2019s financial position , results of operations or cash flows . 11 . retirement plans the company and its subsidiaries have various savings and retirement plans covering substantially all employees . defined contribution plans the company maintains a defined contribution plan for the benefit of its eligible u.s . employees . this plan provides for company contributions of up to 5% ( 5 % ) of each participant 2019s total eligible compensation . in addition , the company contributes an amount equal to each participant 2019s pre-tax contribution , if any , up to a maximum of 3% ( 3 % ) of each participant 2019s total eligible compensation . the total expense related to the defined contribution plans for u.s . employees was $ 47.7 million in fiscal 2019 , $ 41.4 million in fiscal 2018 and $ 35.8 million in fiscal 2017 . non-qualified deferred compensation plan the deferred compensation plan ( dcp ) allows certain members of management and other highly-compensated employees and non-employee directors to defer receipt of all or any portion of their compensation . the dcp was established to provide participants with the opportunity to defer receiving all or a portion of their compensation , which includes salary , bonus , commissions and director fees . under the dcp , the company provides all participants ( other than non-employee directors ) with company contributions equal to 8% ( 8 % ) of eligible deferred contributions . the dcp is a non-qualified plan that is maintained in a rabbi trust . the fair value of the investments held in the rabbi trust are presented separately as deferred compensation plan investments , with the current portion of the investment included in prepaid expenses and other current assets in the consolidated balance sheets . see note 2j , fair value , for further information on these investments . the deferred compensation obligation represents dcp participant accumulated deferrals and earnings thereon since the inception of the dcp net of withdrawals . the deferred compensation obligation is presented separately as deferred compensation plan liability , with the current portion of the obligation in accrued liabilities in the consolidated balance sheets . the company 2019s liability under the dcp is an unsecured general obligation of the company . analog devices , inc . notes to consolidated financial statements 2014 ( continued ) .

Questions:
what were rental lease expenses in 2019?
what were they in 2017?
what is the net change in value?
what is the percent change?

Answers:
92.3
58.8
33.5
57%