Ok..lets explain better..
Everyday I receive currency value which I store in a db and I show
always the last one on my web page.
What I need to do is to calculate the daily trend based on the absolute
variation (last value - previous value) and show it on my page using
gif symbols (arrow up, arrow down, stable). I do know how to create the
if statements, I know how to get the last value but I do not know how
to get the last value -1 (previous value).
Hope this would be a bit clearer and can help you to understand better.
Thank you
Valter
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