Earnings Stability Metric

Also referred to as earnings volatility. Would we be able to calculate something like this?

Earnings StabilityIndicates in percentage from one standard deviation of the variability around the trend line fitted through 3 to 5 years of earnings' history with a scale ranging from 1 to 99. Lower numbers represent more stable company earnings history.

Pulled from: http://education.investors.com/financial-dictionary/ibd-terms/Earnings-Stability

Requested by Barring Coughlin (Coughlin & Associates - 1 seat)