documentclass{article}
usepackage{pgfplots}
usepackage{pgfplotstable}
usepackage{siunitx}

begin{document}
pgfplotstableread[col sep = comma]{lossprob_jin1.csv}loadedtable

begin{figure*}
centering
begin{tikzpicture}
begin{axis} [xlabel=Buffer-Size (bits),ylabel=Loss Probability (%), legend entries = {H=0.6448}]
addplot table [x=xsw, y=plp, col sep=comma] {loadedtable} ;
end{axis}
end{tikzpicture}
end{figure*}
end{document}

documentclass{article}
usepackage{pgfplots}
pgfplotsset{compat=1.12}
begin{document}
begin{tikzpicture}
begin{axis}[
    scaled y ticks=false,
    y tick label style={
        /pgf/number format/fixed,
        /pgf/number format/precision=0
    },
    yticklabel=0.02421307pgfmathprintnumber{tick},
    x tick label style={
        /pgf/number format/1000 sep={}
    },
    xlabel=Buffer size in bits,
    ylabel=Loss proabiblity in %
]
addplot[raw gnuplot, mark=*] gnuplot {
    plot 'data.dat' using 2:($1-0.02421307)*1e10;
};
end{axis}
end{tikzpicture}
end{document}

documentclass{standalone}
usepackage{tikz,pgfplots,pgfplotstable}
pgfplotsset{compat=1.12}
usepackage{siunitx}
begin{document}
pgfplotstableread
{
x y
0     2.42130785530195E-02
113.8 2.42130783443945E-02
227.6 2.42130781357695E-02
341.3 2.42130779271445E-02
455.1 2.42130777185196E-02
568.9 2.42130775098946E-02
682.7 2.42130773012696E-02
796.4 2.42130770926447E-02
910.2 2.42130768840197E-02
1024  2.42130766753947E-02
}Bsizeloss
begin{tikzpicture}
  begin{axis}[xlabel={Buffer-Size (bits)},
              ylabel={Loss Probability, % ($times 10^{10}-242130700$)},
              ytick={67,73,79,85},
              legend entries = {H=0.6448},
              grid = major
              ]
  addplot+ table[y expr=directlua{tex.print(thisrow{y}*1E10-242130700)},x=x] {Bsizeloss};
  end{axis}
end{tikzpicture}

documentclass{standalone}
usepackage{tikz,pgfplots,pgfplotstable}
pgfplotsset{compat=1.12}
%usepackage{siunitx}% seems not needed in this mwe
usepackage{xintexpr}
begin{document}
pgfplotstableread
{
x y
0     2.42130785530195E-02
113.8 2.42130783443945E-02
227.6 2.42130781357695E-02
341.3 2.42130779271445E-02
455.1 2.42130777185196E-02
568.9 2.42130775098946E-02
682.7 2.42130773012696E-02
796.4 2.42130770926447E-02
910.2 2.42130768840197E-02
1024  2.42130766753947E-02
}Bsizeloss
begin{tikzpicture}
  begin{axis}[xlabel={Buffer-Size (bits)},
              ylabel={Loss Probability, % ($times 10^{10}-242130700$)},
              ytick={67,73,79,85},
              legend entries = {H=0.6448},
              grid = major
              ]
  addplot+ table[y expr=xintthefloatexprthisrow{y}*1E10-242130700relax,x=x] {Bsizeloss};
  end{axis}
end{tikzpicture}
end{document}