貿易通 2020 年年報

184 Notes to the Financial Statements (Continued) 財務報表附註（續） Tradelink Electronic Commerce Limited Annual Report 2020 24 以股權結算並以股份為基 礎的交易（續） (b) 購股權的公允價值及假設 作為授出購股權代價而獲得的服務 公允價值，乃參照已授出購股權的 公允價值計算。已授出購股權的估 計公允價值乃根據柏力克舒爾斯模 式計算。此模式亦會計及購股權的 合約年期。 購股權的公允價值及假設 預期波幅乃參考本公司過往與預期 購股權有效期長度相同之期間的每 日歷史波幅作出。預期股息乃按過 往股息而定。用作計算的主觀假設 如有更改，可能重大影響公允價值 的估計。 購股權是基於已提供服務的條件授 出。計算所獲提供服務於授出日期 之公允價值時，並無考慮該項條件。 授出購股權與市況無關。 24 Equity-settled share-based transactions (Continued) (b) Fair value of share options and assumptions The fair value of services received in return for share options granted is measured by reference to the fair value of share options granted. The estimate of the fair value of the share options granted is measured based on Black Scholes Model. The contractual life of the share option is used as an input into this model. Fair value of share options and assumptions 2020 2019 二零二零年 二零一九年 Fair value at measurement date 於計量日期的公允價值 HK$0.073 HK$0.113 港幣 0.073 元 港幣 0.113 元 Share price 股價 HK$1.09 HK$1.39 港幣 1.09 元 港幣 1.39 元 Exercise price 行使價 HK$1.09 HK$1.406 港幣 1.09 元 港幣 1.406 元 Expected volatility (expressed as weighted average volatility used in the modelling under Black Scholes Model) 預期波幅（按柏力克舒 爾斯模式所用之加權 平均波幅呈列） 22.2% 23.2% Option life (expressed as weighted average life used in the modelling under Black-Scholes model) 購股權有效期（按柏力 克舒爾斯模式所用之 加權平均年期呈列） 5 years 5 years 5 年 5 年 Expected dividends 預期股息 6.7% 6.7% Risk-free interest rate (based on the yield of Hong Kong Government Bonds) 無風險利率（按香港 政府債券收益率 計算） 0.52% 1.628% The expected volatility is made with reference to the daily historical volatilities of the Company with period commensurate to the expected option life. Expected dividends are based on historical dividends. Changes in the subjective input assumptions could materially affect the fair value estimate. Share options were granted under a service condition. This condition has not been taken into account in the grant date fair value measurement of the services received. There were no market conditions associated with the share option grants.