To sustain that level of income at 4 percent, you will need about $12.5 million in principal.

But it might not be necessary to wait until you have paid that much in principal.

This week the opening was postponed again, at a cost of $500,000 a day in principal and interest on borrowed funds.

In principal, an outgoing government leaving a joke to another would be fine, the W key being a great example.

At the jumbo rate of 6.42 percent, she would pay $2,018 a month in principal and interest.

Those bonds would rise to $580 million in principal, and then start paying interest at 17.5 percent annually for 10 years.

Of that, the fund's annual increase in principal only was just 1.9 percent.

"Clearly the details will have to be worked out, but can I take it that we have an agreement in principal?"

If interest rates go up, they will lose a substantial amount in principal.

The next day, more than $40 billion more in interest and principal comes due.