{"pre_text": ["fund collateral , net of the distribution of interest earned to the clearing firms , as well as an increase in trading volumes and the reduction of restricted cash related to the cme clearing europe limited ( cmece ) guaranty the increase in 2016 when compared with 2015 was attributable to higher clearing and transaction fees and market data revenue .", "investing activities the increases in cash provided by investing activities from 2015 through 2017 were due to proceeds from the sale of bm&fbovespa shares as well as declines in purchases of property and equipment .", "the increase in 2017 when compared with 2016 was also attributable to the sale of the remaining bolsa mexicana de valores , s.a.b .", "de c.v .", "shares .", "financing activities the increases in cash used by financing activities from 2015 through 2017 were attributable to higher cash dividends declared in 2017 and 2016 .", "the increase in 2016 was partially offset by proceeds from a finance lease obligation related to the sale leaseback of the datacenter in the first quarter of 2016 .", "debt instruments the following table summarizes our debt outstanding as of december 31 , 2017: ."], "post_text": ["fixed rate notes due september 2022 , stated rate of 3.00% ( 3.00 % ) ( 1 ) .", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", "$ 750.0 fixed rate notes due march 2025 , stated rate of 3.00% ( 3.00 % ) ( 2 ) .", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", "750.0 fixed rate notes due september 2043 , stated rate of 5.30% ( 5.30 % ) ( 3 ) .", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", "750.0 ( 1 ) in august 2012 , we entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.32% ( 3.32 % ) .", "( 2 ) in december 2014 , we entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.11% ( 3.11 % ) .", "( 3 ) in august 2012 , we entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable effectively became fixed at a rate of 4.73% ( 4.73 % ) .", "we maintain a $ 2.3 billion multi-currency revolving senior credit facility with various financial institutions , which matures in november 2022 .", "the proceeds from this facility can be used for general corporate purposes , which includes providing liquidity for our clearing house in certain circumstances at cme group 2019s discretion and , if necessary , for maturities of commercial paper .", "as long as we are not in default under this facility , we have the option to increase it up to $ 3.0 billion with the consent of the agent and lenders providing the additional funds .", "this facility is voluntarily pre-payable from time to time without premium or penalty .", "under this facility , we are required to remain in compliance with a consolidated net worth test , which is defined as our consolidated shareholders 2019 equity at september 30 , 2017 , giving effect to share repurchases made and special dividends paid during the term of the agreements ( and in no event greater than $ 2.0 billion in aggregate ) , multiplied by 0.65 .", "we currently do not have any borrowings outstanding under this facility .", "we maintain a 364-day multi-currency revolving secured credit facility with a consortium of domestic and international banks to be used in certain situations by cme clearing .", "the facility provides for borrowings of up to $ 7.0 billion .", "we may use the proceeds to provide temporary liquidity in the unlikely event of a clearing firm default , in the event of a liquidity constraint or default by a depositary ( custodian for our collateral ) , or in the event of a temporary disruption with the domestic payments system that would delay payment of settlement variation between us and our clearing firms .", "clearing firm guaranty fund contributions received in the form of ."], "table": [["( in millions )", "par value"], ["fixed rate notes due september 2022 stated rate of 3.00% ( 3.00 % ) ( 1 )", "$ 750.0"], ["fixed rate notes due march 2025 stated rate of 3.00% ( 3.00 % ) ( 2 )", "750.0"], ["fixed rate notes due september 2043 stated rate of 5.30% ( 5.30 % ) ( 3 )", "750.0"]], "table_ori": [["(in millions)", "Par Value"], ["Fixed rate notes due September 2022, stated rate of 3.00%<sup>(1)</sup>", "$750.0"], ["Fixed rate notes due March 2025, stated rate of 3.00%<sup>(2)</sup>", "750.0"], ["Fixed rate notes due September 2043, stated rate of 5.30%<sup>(3)</sup>", "750.0"]]}

Question: what was the decrease in the interest payable between august 2012 and in december 2014?
Evidence:
text_110: 750.0 ( 1 ) in august 2012 , we entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.32% ( 3.32 % ) .
text_111: ( 2 ) in december 2014 , we entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.11% ( 3.11 % ) .
Program: subtract(3.11, 3.32)
Answer:
str_answer: -0.21%
exe_answer: -0.21