19. Retirement benefit obligations (continued) The amounts recognised in the Statement of Profit or Loss and Comprehensive Income are as follows: Group 2022 2021 R’m R’m Interest cost 1 1 Actuarial (gain) / loss recognised during the year – (1) Total included in employee costs (note 28) 1 – The principal actuarial assumptions used were as follows: Discount rate based on the Long-term Bond Index (%) 10.53 9.51 Medical cost inflation (%) 7.49 7.49 The assumed rates of mortality are as follows: During employment: SA85-90 (Light) ultimate table Post-employment: PA(90) ultimate table rated down two years plus 1% improvement per annum (from a base year of 2006) 149 Notes to the Consolidated Financial Statements
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