Circular Gauges are those gauges that have a radial scale and usually use a needle to show the value on this scale. There can be several axes and each might have a needle pointing at the value that axis is intended to have. Mostly circular gauges are used as electronic simulators of real gauges like speedometers, tuners or watches, but sometimes they can be used in finances, like in this example.
This Gauge is a half-circular Sales Gauge – quite a popular instrument in sales management nowadays. It shows how successful are the sales and displays the sales volume in dollars. The range of the possible values for sales is from $0 to $100k. Three ranges divide the values into three categories: sales volume is poor when it is under $30k; if it fits the range from $30k to $70k then it’s average and it’s the best situation when sales volume fits the last range from $70k to $100k. Each range has a label and all ranges are colored differently for easier value quality distinction. Major ticks are visible and colored in white. There is a knob enabled with a needle that shows the sales volume rate, which is $73.2k. The head of the chart holds its title and the current value of sales volume.