Ratio Measurement:

Ratio level is the highest level  of  measurement. They  are  distinguished from internal scales  by  virtue of having an absolute zero. Ratio scale provides information regarding  : Rank  Ordering, interval between object, Absolute zero.  

The  statistic applicable: All  type of statistical procedures  are  applicable. The ratio  level is distinguished from interval level  by  having a zero point that really means  zero. In research the distinction between Interval  and Ratio measurement is really not needed because both use the  same statistical tests. Therefore,  it  is more efficient to  group them  in one  category. Some authors group them  as "Measurable" (Continuous data). The  following example  shows how ratio  or  interval  level data can be presented in Table 5.3. For  example,  if we are  looking  at the  income of villagers by occupational category might present  them  in the following table. Here the income  is  an  interval level data.