Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: corporate corporate expenses in 2016 benefited from the absence of transaction costs associated with the norcraft acquisition ( $ 15.1 million in 2015 ) . this benefit was offset by higher employee-related costs and lower defined benefit plan income . ( in millions ) 2016 2015 . <table class='wikitable'><tr><td>1</td><td>( in millions )</td><td>2016</td><td>2015</td></tr><tr><td>2</td><td>general and administrative expense</td><td>$ -80.9 ( 80.9 )</td><td>$ -70.1 ( 70.1 )</td></tr><tr><td>3</td><td>defined benefit plan income</td><td>2.9</td><td>6.1</td></tr><tr><td>4</td><td>defined benefit plan recognition of actuarial losses</td><td>-1.9 ( 1.9 )</td><td>-2.5 ( 2.5 )</td></tr><tr><td>5</td><td>norcraft transaction costs ( a )</td><td>2014</td><td>-15.1 ( 15.1 )</td></tr><tr><td>6</td><td>total corporate expenses</td><td>$ -79.9 ( 79.9 )</td><td>$ -81.6 ( 81.6 )</td></tr></table> ( a ) represents external costs directly related to the acquisition of norcraft and primarily includes expenditures for banking , legal , accounting and other similar services . in future periods the company may record , in the corporate segment , material expense or income associated with actuarial gains and losses arising from periodic remeasurement of our liabilities for defined benefit plans . at a minimum the company will remeasure its defined benefit plan liabilities in the fourth quarter of each year . remeasurements due to plan amendments and settlements may also occur in interim periods during the year . remeasurement of these liabilities attributable to updating our liability discount rates and expected return on assets may , in particular , result in material income or expense recognition . liquidity and capital resources our primary liquidity needs are to support working capital requirements , fund capital expenditures and service indebtedness , as well as to finance acquisitions , repurchase shares of our common stock and pay dividends to stockholders , as deemed appropriate . our principal sources of liquidity are cash on hand , cash flows from operating activities , availability under our credit facility and debt issuances in the capital markets . our operating income is generated by our subsidiaries . there are no restrictions on the ability of our subsidiaries to pay dividends or make other distributions to fortune brands . in december 2017 , our board of directors increased the quarterly cash dividend by 11% ( 11 % ) to $ 0.20 per share of our common stock . our board of directors will continue to evaluate dividend payment opportunities on a quarterly basis . there can be no assurance as to when and if future dividends will be paid , and at what level , because the payment of dividends is dependent on our financial condition , results of operations , cash flows , capital requirements and other factors deemed relevant by our board of directors . we periodically review our portfolio of brands and evaluate potential strategic transactions to increase shareholder value . however , we cannot predict whether or when we may enter into acquisitions , joint ventures or dispositions , make any purchases of shares of our common stock under our share repurchase program , or pay dividends , or what impact any such transactions could have on our results of operations , cash flows or financial condition , whether as a result of the issuance of debt or equity securities , or otherwise . our cash flows from operations , borrowing availability and overall liquidity are subject to certain risks and uncertainties , including those described in the section 201citem 1a . risk factors . 201d in june 2016 , the company amended and restated its credit agreement to combine and rollover the existing revolving credit facility and term loan into a new standalone $ 1.25 billion revolving credit facility . this amendment and restatement of the credit agreement was a non-cash transaction for the company . terms and conditions of the credit agreement , including the total commitment amount , essentially remained the same as under the 2011 credit agreement . the revolving credit facility will mature in june 2021 and borrowings thereunder will be used for general corporate purposes . on december 31 , 2017 and december 31 , 2016 , our outstanding borrowings under these facilities were $ 615.0 million and $ 540.0 million , respectively . at december 31 , 2017 and december 31 , 2016 , the current portion of long- term debt was zero . interest rates under the facility are variable based on libor at the time of the .
Question: what was the general and administrative expense in 2016?
Answer: 80.9
Question: and what was it in 2015?
Answer: 70.1
Question: what was, then, the change over the year?
Answer: 10.8
Question: and what percentage does this change represent in relation to to the 2015 expense?

user
0.15407
assistant