how to calculate percentiles how many percentiles in a dataset how many values are between x and y how many data points in range are between percentiles how do i find the percentiles of my data how many data points are above a percentile what percentile is used in data how to figure out percentile range of a data set calculating percentile range what percentiles is used for calculating the gross income how do you calculate an approximate value from percentile data what is the percentage of data how many percentiles are in a percentile how do you find the average income tax rate on an income data set how to estimate percentiles how many data points in specific range how to calculate income tax rates in percentiles how can i estimate percentage values? average number a per centile calculate trf in percentiles