I'm working on production line management software for a small factory that deals with various kinds of stock. Stock generally decreases one-by-one and I want to show these stock levels visually in an intuitive way.
Is there any previous work in this area, which does not take up much more space than a number, but makes it obvious how much stock remains? An additional bonus would be to represent high or low levels (which are stock-specific) in a variable way.
There are at most 10s of different stocks and their levels can be anything from -10 (due to bad things) and 2,000, but levels will usually be in the 0-500 range. It would be nice to stand on its own, but if it accompanied an exact integer that would be nice.
My first attempt is stacked columns of coloured pixels, where the colours represent different denominations, kind of like poker chips:
So, Stock A would read from left to right as 12,423:
4*2500 + 4*500 + 3*100 + 4*25 + 4*5 + 3 = 10,000 + 2,000 + 300 + 100 + 20 + 3 = 12,423