Stock Based Compensation (Tables)

3 Months Ended

Nov. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of assumptions about stock options

The weighted average estimated fair value of employee stock options granted on November 1, 2021 was determined using the binomial model with the following weighted average assumptions:

November 1, 2021 Grant Details
Risk-free interest rate	0.07% - 1.56%
Expected life (years)	6.91
Expected volatility	24.4	%
Dividend yield	0.85	%
Estimated fair value	$102.40
Exercise price	$434.82
Fair value as a percentage of exercise price	23.5	%