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Share Plans (Tables)
3 Months Ended
Mar. 28, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation Expense Total share-based compensation expense for the quarters ended March 28, 2021, and March 29, 2020, was as follows:
First Quarter
In millions20212020
Total share-based compensation charges$0.5 $0.5 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The following table illustrates the assumptions used in deriving the fair value of share options granted during the First Quarter of 2021 and the year-ended December 31, 2020:
First QuarterYear ended December 31,
20212020
Dividend yield (%)
3.39 - 4.09
3.39 - 4.09
Expected volatility range (%)
36.48 - 56.28
36.48 - 56.28
Risk-free interest rate (%)
0.18 - 0.49
0.18 - 0.49
Expected life of share options range (years)
0.50 - 4.00
0.50 - 4.00
Forfeiture rate (%)
5.00
5.00
Weighted average exercise price ($)$1.00$1.00
Models usedBlack-Scholes Black-Scholes & Monte-Carlo