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Share-Based Payments (Tables) | 3 Months Ended
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Nov. 19, 2022
Share-Based Payments |
Schedule of Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense | The weighted average fair value of the stock option awards granted during the twelve week periods ended November 19, 2022 and November 20, 2021, using the Black-Scholes-Merton multiple-option pricing valuation model, was $760.82 and $462.80 per share, respectively, using the following weighted average key assumptions: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Twelve Weeks Ended | ​
​ |  | November 19, |  | November 20, |
​ |  | 2022 | ​ | 2021 | ​
​ | ​ | ​ | ​ | ​ | ​
Expected price volatility |  | 29 | % | 28 | %
Risk-free interest rate |  | 3.8 | % | 1.1 | %
Weighted average expected lives (in years) |  | 5.4 |  | 5.6 |
Forfeiture rate |  | 10 | % | 10 | %
Dividend yield |  | 0 | % | 0 | %
Schedule of Nonvested Restricted Stock Units Activity | Transactions related to restricted stock units for the twelve weeks ended November 19, 2022 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted-
​ |  | Number |  | Average Grant
​ | ​ | of Shares | ​ | Date Fair Value
​ | ​ | ​ | ​ | ​ | ​
Nonvested at August 27, 2022 |  | 12,731 | ​ | $ | 1,223.61
Granted |  | 2,595 | ​ | ​ | 2,205.03
Vested |  | (5,646) | ​ | ​ | 1,074.44
Forfeited |  | (588) | ​ | ​ | 1,461.94
Nonvested at November 19, 2022 |  | 9,092 | ​ | $ | 1,580.94

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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