.3 million , of which approximately $ 34 million is subject to amortiza- tion over periods ranging from approximately 8 to 16 years . the actual negative return on assets was primarily related to the performance of equity markets during the past fi scal year . a 25 basis-point change in the discount rate or the expected rate of return on plan assets would have had the following effect on fi scal 2008 pension expense : 25 basis-point 25 basis-point increase decrease ( in millions ) .