Earnings per Share

12 Months Ended

Sep. 30, 2023

Earnings per Share

Basic earnings per share is based on the average number of common shares outstanding during the period. Diluted earnings per share is based on the average number of shares used for the basic earnings per share calculation, adjusted for the dilutive effect of share options, RSE, and PRSE awards.

The following is the reconciliation between the number of weighted-average shares used in the basic and diluted earnings per share calculation:


	Fiscal Year
	2023	2022	2021

Basic weighted-average shares outstanding	51.2	53.1	54.4
Effect of dilutive securities:
RSE and PRSE awards	0.6	0.5	0.8
Total dilutive securities	0.6	0.5	0.8
Diluted weighted-average shares outstanding	51.8	53.6	55.2

For fiscal 2023, 2022 and 2021, the calculation of diluted weighted-average shares outstanding excludes 1.2, 1.0 and 0.9, respectively, of share options because the effect of including these awards was anti-dilutive. For fiscal 2022, the calculation of diluted weighted-average shares outstanding excludes 0.2 of RSE and PRSE awards because the effect of including these awards was anti-dilutive. There were no anti-dilutive RSE and PRSE awards excluded from the calculation for fiscal 2023 and 2021.