How can I program an Trailing stop loss?

[johan]

Hi,
How can I program a trailing stop loss for a sheet where I am folowing my
stocks?

I found a sheet that gets me current ifo on the stocks. Every day, if I
upload the stockfigures, I need to calculate and look in the figures of the
previous day to see if it got higher or not, to adapt the trailing top, and
calculate my trailing stop level.

Thanks in advance.