理文化工(00746) - 2023 - 中期财报

24 Expected volatility was determined by using the historical volatility of the Company's share price. The expected life used in the model has been adjusted, based on management's best estimate, for the effects of non-transferability, exercise restrictions and behavioural considerations. The Group recognises the total expense of HK$Nil for the six months ended 30 June 2023 (six months ended 30 June 2022: HK$8,059,000) in relation to share options granted by the Company. The Board has declared an interim div ...