Next, name the parameter, select the corresponding data type, and set the maximum and minimum values. Because each product has different price ranges, I decided to focus the what-if analysis on a price percentage increase or decrease. To give the end user precise control over the what-if analysis, I decided to set the increment as 1% and allowed the range to be +/= 200%. Note: if you are doing a decimal increment, don’t forget to add the leading zero (i.e. 0.01 instead of .01). Once you have your parameter set, click “OK.”