after tax return equals pretax return

How can this be, after tax return be equal to pretax return:

"When returns are subject to accrual taxes, the after-tax return is equal to the pretax return, r, multiplied by (1 − ti) where ti represents the tax rate applicable to investment income"

The comma is a pause and not an ending, so continue reading the sentence in full.

That is saying the after tax return = Pretax Return * (1-ti)

Thanks 125mph, may I read it at midnight :smiley: