challenging investment environment with $ 15.0 billion , or 95% ( 95 % ) , of net inflows coming from institutional clients , with the remaining $ 0.8 billion , or 5% ( 5 % ) , generated by retail and hnw clients . defined contribution plans of institutional clients remained a significant driver of flows . this client group added $ 13.1 billion of net new business in 2012 . during the year , americas net inflows of $ 18.5 billion were partially offset by net outflows of $ 2.6 billion collectively from emea and asia-pacific clients . the company 2019s multi-asset strategies include the following : 2022 asset allocation and balanced products represented 52% ( 52 % ) , or $ 140.2 billion , of multi-asset class aum at year-end , up $ 14.1 billion , with growth in aum driven by net new business of $ 1.6 billion and $ 12.4 billion in market and foreign exchange gains . these strategies combine equity , fixed income and alternative components for investors seeking a tailored solution relative to a specific benchmark and within a risk budget . in certain cases , these strategies seek to minimize downside risk through diversification , derivatives strategies and tactical asset allocation decisions . 2022 target date and target risk products ended the year at $ 69.9 billion , up $ 20.8 billion , or 42% ( 42 % ) , since december 31 , 2011 . growth in aum was driven by net new business of $ 14.5 billion , a year-over-year organic growth rate of 30% ( 30 % ) . institutional investors represented 90% ( 90 % ) of target date and target risk aum , with defined contribution plans accounting for over 80% ( 80 % ) of aum . the remaining 10% ( 10 % ) of target date and target risk aum consisted of retail client investments . flows were driven by defined contribution investments in our lifepath and lifepath retirement income ae offerings , which are qualified investment options under the pension protection act of 2006 . these products utilize a proprietary asset allocation model that seeks to balance risk and return over an investment horizon based on the investor 2019s expected retirement timing . 2022 fiduciary management services accounted for 22% ( 22 % ) , or $ 57.7 billion , of multi-asset aum at december 31 , 2012 and increased $ 7.7 billion during the year due to market and foreign exchange gains . these are complex mandates in which pension plan sponsors retain blackrock to assume responsibility for some or all aspects of plan management . these customized services require strong partnership with the clients 2019 investment staff and trustees in order to tailor investment strategies to meet client-specific risk budgets and return objectives . alternatives component changes in alternatives aum ( dollar amounts in millions ) 12/31/2011 net new business acquired market /fx app ( dep ) 12/31/2012 .

12/31/2011: core: 63647
currency and commodities: 41301
alternatives: 104948
net new business: core: -3922
currency and commodities: -1547
alternatives: -5469
net acquired: core: 6166
currency and commodities: 860
alternatives: 7026
market /fx app ( dep ): core: 2476
currency and commodities: 814
alternatives: 3290
12/31/2012: core: 68367
currency and commodities: 41428
alternatives: 109795

alternatives aum totaled $ 109.8 billion at year-end 2012 , up $ 4.8 billion , or 5% ( 5 % ) , reflecting $ 3.3 billion in portfolio valuation gains and $ 7.0 billion in new assets related to the acquisitions of srpep , which deepened our alternatives footprint in the european and asian markets , and claymore . core alternative outflows of $ 3.9 billion were driven almost exclusively by return of capital to clients . currency net outflows of $ 5.0 billion were partially offset by net inflows of $ 3.5 billion into ishares commodity funds . we continued to make significant investments in our alternatives platform as demonstrated by our acquisition of srpep , successful closes on the renewable power initiative and our build out of an alternatives retail platform , which now stands at nearly $ 10.0 billion in aum . we believe that as alternatives become more conventional and investors adapt their asset allocation strategies to best meet their investment objectives , they will further increase their use of alternative investments to complement core holdings . institutional investors represented 69% ( 69 % ) , or $ 75.8 billion , of alternatives aum with retail and hnw investors comprising an additional 9% ( 9 % ) , or $ 9.7 billion , at year-end 2012 . ishares commodity products accounted for the remaining $ 24.3 billion , or 22% ( 22 % ) , of aum at year-end . alternative clients are geographically diversified with 56% ( 56 % ) , 26% ( 26 % ) , and 18% ( 18 % ) of clients located in the americas , emea and asia-pacific , respectively . the blackrock alternative investors ( 201cbai 201d ) group coordinates our alternative investment efforts , including .

Questions:
what is the value of alternative assets in 2012?
what is the value in 2011?
what is the net change in value?
what was the 2011 value?
what is the net change over that value?

Answers:
109795
104948
4847
104948
4.6%