How is the Bollinger Oscillator Calculated?

How is the Bollinger Oscillator Calculated?

References

Reference NO 1

http://stackoverflow.com/questions/15189002/how-is-the-bollinger-oscillator-calculated

Reference NO 2

http://stockcharts.com/education/IndicatorAnalysis/indic_Bbands.html

Reference NO 3

http://en.wikipedia.org/wiki/Bollinger_Bands

Reference NO 4

http://www.bollingeronbollingerbands.com/methods/?m=3

Reference NO 5

http://www.iqbroker.com/technical-indicators/bollinger-bands-oscillator-(b-).aspx?id=Indicator_1054

Reference NO 6

http://www.incrediblecharts.com/indicators/bollinger_percentage_b_band_width.php

Reference NO 7

http://number1.co.za/the-bollinger-oscillator-bos/

Reference NO 8

http://www.marketvolume.com/technicalanalysis/bollingerpercent.asp