Respondents also said that competition in their area was predominately stable or growing. Some additional explanation of profit margin will be included later. It does not mean that these companies saw their sales volumes drop. Instead, it means we didn't get useable data from some huge companies. Again, median indicates a volume at which half of the respondents are higher and half are lower.
Medians are relatively unaffected by extremes.
In the past, we let each company determine this for themselves. Profit margin has crept up each of the past three years. None of the other four components of the composite income statement changed significantly from last year. Table 22c shows these figures for each of the different sales-volume categories. Super Vision - LEDs and fiber optic components and kits for the sign industry.