carry

Adjust your carry from time to time so that you don't tire too quickly.

Undrowned, unducked, as safe from the perils of the broad lake as we had come out of the defiles of the rapids, we landed at the carry below the dam at the lake's outlet.

On paper, simply add the carry to the next addition; that is, $B2 + $9C + 1. That's fine for paper, but how is it done by computer?

The carry on this trade is 25 basis points per annum.