\documentclass[12pt]{article}
\usepackage{fullpage,amsmath,amsfonts,graphicx,eurosym,url}
\usepackage{tikz,calc}
\usetikzlibrary{arrows,positioning,automata}

\begin{document}



Exchange rates obtained from
\url{http://www.xe.com/currencyconverter/} on March 10, 2016.


\begin{tikzpicture}[>=stealth',shorten >=1pt,node distance=4cm,on grid,initial/.style    ={}]
  \node[state] (EUR)   {EUR};
  \node[state] (USD) [above right of=EUR]   {USD};
  \node[state] (CNY) [above of=USD]   {CNY};
  \node[state] (AUD) [above left of=CNY]   {AUD};
  \node[state] (BRL) [left of=AUD]   {BRL};
  \node[state] (GBP) [below left of=BRL]   {GBP};
  \node[state] (JPY) [below of=GBP]   {JPY};
  \node[state] (RUB) [below right of=JPY]   {RUB};
\tikzset{mystyle/.style={->}} 
\tikzset{every node/.style={auto,swap}} 
\path (EUR)     edge [mystyle]   node   {$1.11147$} (USD)
      (USD)     edge [mystyle]   node   {$6.50135$} (CNY) 
      (CNY)     edge [mystyle]   node   {$0.204864$} (AUD)
      (AUD)     edge [mystyle]   node   {$2.73332$} (BRL)
      (BRL)     edge [mystyle]   node   {$0.192399$} (GBP)
      (BRL)     edge [mystyle]   node[near end]   {$1.78939$} (CNY)
      (GBP)     edge [mystyle]   node[near end,anchor=west]   {$1.28408$} (EUR)
      (GBP)     edge [mystyle]   node   {$162.818$} (JPY) 
      (JPY)     edge [mystyle]   node   {$0.612633$} (RUB)
      (JPY)     edge [mystyle]   node   {$0.0116600$} (AUD)
      (RUB)     edge [mystyle]   node   {$0.0129012$} (EUR)
      (BRL)     edge [mystyle]   node[near end]   {$0.275413$} (USD)
      (RUB)     edge [mystyle]   node   {$0.0522003$} (BRL) ;

\end{tikzpicture}
\end{document}
