How do you set percentage in Google Visualization Chart API?

Question

How do you set the vertical axis to display percent such as 25%, 50%, 75%, 100%?

Answer 1

chart.draw(data, {vAxis: {format:'#%'} } );

To get comma for thousands, use {format:'#,###%'}.

See http://code.google.com/apis/chart/interactive/docs/gallery/linechart.html