{"pre_text": ["future payments that will not be paid because of an early redemption , which is discounted at a fixed spread over a comparable treasury security .", "the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2022 notes .", "2021 notes .", "in may 2011 , the company issued $ 1.5 billion in aggregate principal amount of unsecured unsubordinated obligations .", "these notes were issued as two separate series of senior debt securities , including $ 750 million of 4.25% ( 4.25 % ) notes maturing in may 2021 and $ 750 million of floating rate notes , which were repaid in may 2013 at maturity .", "net proceeds of this offering were used to fund the repurchase of blackrock 2019s series b preferred from affiliates of merrill lynch & co. , inc .", "interest on the 4.25% ( 4.25 % ) notes due in 2021 ( 201c2021 notes 201d ) is payable semi-annually on may 24 and november 24 of each year , which commenced november 24 , 2011 , and is approximately $ 32 million per year .", "the 2021 notes may be redeemed prior to maturity at any time in whole or in part at the option of the company at a 201cmake-whole 201d redemption price .", "the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2021 notes .", "2019 notes .", "in december 2009 , the company issued $ 2.5 billion in aggregate principal amount of unsecured and unsubordinated obligations .", "these notes were issued as three separate series of senior debt securities including $ 0.5 billion of 2.25% ( 2.25 % ) notes , which were repaid in december 2012 , $ 1.0 billion of 3.50% ( 3.50 % ) notes , which were repaid in december 2014 at maturity , and $ 1.0 billion of 5.0% ( 5.0 % ) notes maturing in december 2019 ( the 201c2019 notes 201d ) .", "net proceeds of this offering were used to repay borrowings under the cp program , which was used to finance a portion of the acquisition of barclays global investors from barclays on december 1 , 2009 , and for general corporate purposes .", "interest on the 2019 notes of approximately $ 50 million per year is payable semi-annually in arrears on june 10 and december 10 of each year .", "these notes may be redeemed prior to maturity at any time in whole or in part at the option of the company at a 201cmake-whole 201d redemption price .", "the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2019 notes .", "2017 notes .", "in september 2007 , the company issued $ 700 million in aggregate principal amount of 6.25% ( 6.25 % ) senior unsecured and unsubordinated notes maturing on september 15 , 2017 ( the 201c2017 notes 201d ) .", "a portion of the net proceeds of the 2017 notes was used to fund the initial cash payment for the acquisition of the fund-of-funds business of quellos and the remainder was used for general corporate purposes .", "interest is payable semi-annually in arrears on march 15 and september 15 of each year , or approximately $ 44 million per year .", "the 2017 notes may be redeemed prior to maturity at any time in whole or in part at the option of the company at a 201cmake-whole 201d redemption price .", "the unamortized discount and debt issuance costs are being amortized over the remaining term of the 2017 notes .", "13 .", "commitments and contingencies operating lease commitments the company leases its primary office spaces under agreements that expire through 2035 .", "future minimum commitments under these operating leases are as follows : ( in millions ) ."], "post_text": ["rent expense and certain office equipment expense under lease agreements amounted to $ 134 million , $ 136 million and $ 132 million in 2016 , 2015 and 2014 , respectively .", "investment commitments .", "at december 31 , 2016 , the company had $ 192 million of various capital commitments to fund sponsored investment funds , including consolidated vies .", "these funds include private equity funds , real assets funds , and opportunistic funds .", "this amount excludes additional commitments made by consolidated funds of funds to underlying third-party funds as third-party noncontrolling interest holders have the legal obligation to fund the respective commitments of such funds of funds .", "in addition to the capital commitments of $ 192 million , the company had approximately $ 12 million of contingent commitments for certain funds which have investment periods that have expired .", "generally , the timing of the funding of these commitments is unknown and the commitments are callable on demand at any time prior to the expiration of the commitment .", "these unfunded commitments are not recorded on the consolidated statements of financial condition .", "these commitments do not include potential future commitments approved by the company that are not yet legally binding .", "the company intends to make additional capital commitments from time to time to fund additional investment products for , and with , its clients .", "contingencies contingent payments related to business acquisitions .", "in connection with certain acquisitions , blackrock is required to make contingent payments , subject to achieving specified performance targets , which may include revenue related to acquired contracts or new capital commitments for certain products .", "the fair value of the remaining aggregate contingent payments at december 31 , 2016 totaled $ 115 million and is included in other liabilities on the consolidated statement of financial condition .", "other contingent payments .", "the company acts as the portfolio manager in a series of derivative transactions and has a maximum potential exposure of $ 17 million between the company and counterparty .", "see note 7 , derivatives and hedging , for further discussion .", "legal proceedings .", "from time to time , blackrock receives subpoenas or other requests for information from various u.s .", "federal , state governmental and domestic and international regulatory authorities in connection with ."], "table": [["year", "amount"], ["2017", "142"], ["2018", "135"], ["2019", "125"], ["2020", "120"], ["2021", "112"], ["thereafter", "404"], ["total", "$ 1038"]], "table_ori": [["Year", "Amount"], ["2017", "142"], ["2018", "135"], ["2019", "125"], ["2020", "120"], ["2021", "112"], ["Thereafter", "404"], ["Total", "$1,038"]]}

Question: what is the expected percentage change in rent expense and certain office equipment expense from 2017 to 2018?
Evidence:
table_1: year the 2017 of amount is 142 ;
table_2: year the 2018 of amount is 135 ;
Program: subtract(135, 142), divide(#0, 142)
Answer:
str_answer: -4.9%
exe_answer: -0.0493