You can find the decimal version of a percent by dividing the percentage by 100. D X m X t X t 100 Where D is the percent deviation X m is the measured value. The z-score is the number of standard deviations a given proportion is away from the mean.
Percentage Value 100 Total Value.
For example 24 could also be written as 24. First calculate the percentage over budget for the total budget to get an understanding of the overall project. The formula used to calculate sample size. Percentage in decimal form z z-score.