Simple syntax error(its urgent)unable 2 find

i have created an appliation to show the pie chart in pdf, now its
showing properly, but the thing is that its not showing the labels
correctly, can anyone help me, pdf of tht ia attached with this.
also i had a pdf.prawn file with the code as below

pdf.image open(URI.escape(@formatted_pie_chart_url)),:width =>
420,:height => 150, :at => [0, 230]

i tried to right align this by giving (,:align => :right) but it
fails,
any on e please help me

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