The above formula works for any date in the 21st century.

Maybe the old formula would have worked for another day.

However the formula did not work, perhaps being too far ahead of its time.

From a business perspective, the formula may be working - for now.

Are you sure this same formula will work for all four of those people in there?

And his formula for success in London just might work here.

This formula, though good for box office, does not always work.

That formula worked well last winter in making "House" a hit.

The formula has not worked in the first two games.

We are not going to start worrying or change something when the formula is working well.