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Share-Based Payments (Tables) | 12 Months Ended
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Aug. 27, 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 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended |
​ |  | August 27, | ​ | August 28, | ​ | August 29, |
​ |  | 2022 | ​ | 2021 | ​ | 2020 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Expected price volatility |  | 28 | % | 28 | % | 22 | %
Risk-free interest rate |  | 1.1 | % | 0.4 | % | 1.4 | %
Weighted average expected lives (in years) |  | 5.6 | ​ | 5.6 | ​ | 5.5 | ​
Forfeiture rate |  | 10 | % | 10 | % | 10 | %
Dividend yield |  | 0 | % | 0 | % | 0 | %
Schedule of Stock Option Activity | The Company generally issues new shares when options are exercised. The following table summarizes information about stock option activity for the year ended August 27, 2022:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Remaining | ​ | Aggregate
​ | ​ | ​ | ​ | Weighted | ​ | Contractual | ​ | Intrinsic
​ | ​ | Number | ​ | Average | ​ | Term | ​ | Value
​ | ​ | of Shares | ​ | Exercise Price | ​ | (in years) | ​ | (in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding – August 28, 2021 |  | 1,208,054 | ​ | $ | 790.41 |  | ​ | ​ | ​ | ​
Granted |  | 164,532 | ​ | ​ | 1,652.86 |  |  |  | ​ |
Exercised |  | (203,310) | ​ | ​ | 582.42 |  |  |  | ​ |
Forfeited/Cancelled |  | (30,176) | ​ | ​ | 1,198.93 |  |  |  | ​ |
Outstanding – August 27, 2022 |  | 1,139,100 | ​ |  | 941.28 |  | 5.88 | ​ | $ | 1,391,686
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable |  | 739,757 | ​ | ​ | 746.60 | ​ | 4.64 | ​ | ​ | 1,047,804
Expected to vest |  | 380,857 | ​ | ​ | 1,296.02 | ​ | 8.15 | ​ | ​ | 330,203
Available for future grants |  | 1,023,688 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of Nonvested Restricted Stock Units Activity | Transactions related to restricted stock units for the fiscal year ended August 27, 2022 are as follows:
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted-
​ |  | Number |  | Average Grant
​ | ​ | of Shares | ​ | Date Fair Value
​ | ​ | ​ | ​ | ​ | ​
Nonvested at August 28, 2021 |  | 15,751 | ​ | $ | 1,005.41
Granted |  | 5,551 | ​ | ​ | 1,740.19
Vested |  | (6,572) | ​ | ​ | 1,159.53
Forfeited |  | (1,999) | ​ | ​ | 1,149.97
Nonvested at August 27, 2022 |  | 12,731 | ​ | $ | 1,223.61

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