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Share Plans (Tables)
9 Months Ended
Sep. 25, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation Expense Total share-based compensation expense for the quarters ended September 25, 2022, and September 26, 2021, was as follows:
Third QuarterYear-to-date
In millions2022202120222021
Total share-based compensation charges$0.9 $0.8 $1.8 $2.2 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The following table illustrates the assumptions used in deriving the fair value of share options granted during 2022 and the year-ended December 31, 2021:
20222021
Dividend yield (%)
2.27
2.27
Expected volatility range (%)
42.80 - 59.03
42.80 - 59.03
Risk-free interest rate (%)
0.04 - 0.24
0.04 - 0.24
Expected life of share options range (years)
0.50 - 4.00
0.50 - 4.00
Forfeiture rate (%)5.00 5.00 
Weighted average exercise price ($)$1.00$1.00
Model usedBlack-Scholes & Monte-CarloBlack-Scholes & Monte-Carlo