annual report - Tenaga Nasional Berhad

Notes To The Financial Statements30 EMPLOYEE BENEFITS (CONT’D.)R retirement Retirementbenefit plan medical plan TotalR rM’million RM’million RM’millionGroup2008Current service cost 133.9 22.1 156.0Interest cost 130.5 207.1 337.6Expected return on plan assets (33.5) 0 (33.5)Actuarial losses recognised 0 193.8 193.8Past service cost 15.5 0 15.5Others 0.2 0 0.2Total, included in staff costs 246.6 423.0 669.6Actual return on plan assets (86.1) 0 (86.1)The charge to income statement was included in the administrative expenses.The principal actuarial assumptions used in respect of the Group’s defined benefit plans were as follows:R retirement Retirementbenefit plan medical plan% %[ Tenaga Nasional Berhad ] [ Annual Report 2008 ]236GroupAt 31 August 2007Discount rates 6.5 7.1Expected return on plan assets 6.0 N/AExpected rate of salary increases 6.0 N/AMedical cost inflation– inpatient N/A 7.9– outpatient N/A 5.1At 31 August 2008Discount rates 6.5 7.1Expected return on plan assets 6.0 0Expected rate of salary increases 6.0 0Medical cost inflation– inpatient N/A 7.0– outpatient N/A 5.5