Understanding STDEV Add together all the cash flows you have put in the spreadsheet to calculate a total. Divide the total by the number of historical entries to calculate the mean average cash flow.

Determination There are several practical ways to calculate the mean and standard deviation. Scientific calculators typically come with a built-in program for both the mean and standard deviation.

Key Points Use Excel to calculate daily returns and standard deviation to gauge stock volatility. Annualize volatility by multiplying daily standard deviation by the square root of 252.

Calculator.io unveils a new Standard Deviation Calculator, simplifying data analysis for professionals in research, finance, and various scientific fields LAS VEGAS, NEVADA, USA, September 19 ...