T+1 Settlement for a government bond.
Settlement date: 4 Jan
redemption date = 1 Feb
actual date diff = 28
take year convention = 365 for an annualized yield
Commission = 0.2 base point
actual price = 99.576+0.002 = 99.578
revised formula = (100-99.578)/99.578×100%×365÷28 = 0.0552
最近係依個數,仲差少少