My Math Forum  

Go Back   My Math Forum > College Math Forum > Advanced Statistics

Advanced Statistics Advanced Probability and Statistics Math Forum

LinkBack Thread Tools Display Modes
September 23rd, 2013, 02:36 PM   #1
Joined: Sep 2013

Posts: 1
Thanks: 0

Looking for Someone to Point me in the right direction

I wish to run a competition among my stores based on percent improvement over time. Since all stores start with a different initial performance scores, I wish to know how to calculate percent improvement among stores fairly. Because the items being measured require more effort as one approaches a perfect score, it can require more effort to improve ones score from a 95 to a 98 than it requires to move a score of 50 to a 75, What type formula would I use to reflect that as you approach the top of the scale further improvement becomes more difficult? Please check out the attached visual for increased clarity of the problem.

[attachment=1:sv4ns305]Percent Improvement Problem.png[/attachment:sv4ns305]

Attached Images
File Type: png Percent Improvement Problem.png (144.6 KB, 167 views)
ROSJ61 is offline  
September 25th, 2013, 06:01 PM   #2
Math Team
Joined: Apr 2012

Posts: 1,579
Thanks: 22

Re: Looking for Someone to Point me in the right direction

Well, then you DON'T want a percentage based on baseline score.

What you MIGHT do instead is measure distance left to reach 100, and then measure what part of that distance was covered.

So, in you example, as store that moves from 50 to 75 moved 50% of the remaining way to 100. The store that went from 95 to 98 went 60% of the remaining way.

Even this might bias results towards stores with really low baseline scores, however.
johnr is offline  

  My Math Forum > College Math Forum > Advanced Statistics

direction, point

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
calculating direction of tangent xamdarb Calculus 2 March 11th, 2014 10:21 PM
force and direction Melody2 Physics 2 October 28th, 2013 03:44 PM
Need a little direction.... Aimee-D Advanced Statistics 1 July 26th, 2012 04:10 AM
Speed and Direction C42711 Algebra 0 October 30th, 2011 12:06 PM
Direction of max increase jj007 Calculus 3 June 8th, 2010 08:57 AM

Copyright © 2018 My Math Forum. All rights reserved.