# % calculations

**URL:** <https://forums.collective2.com/t/calculations/4204>\
**Category:** C2\
**Created:** [June 3, 2007, 12:47pm UTC](https://forums.collective2.com/t/calculations/4204 "2007-06-03T12:47:17Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![richard\_haines](https://yyz2.discourse-cdn.com/flex028/user_avatar/forums.collective2.com/richard_haines/32/618_2.png) [@richard\_haines](https://forums.collective2.com/u/richard_haines)\
**Post date:** [June 3, 2007, 12:47pm UTC](https://forums.collective2.com/t/calculations/4204/1 "2007-06-03T12:47:17Z")

</div>

Mathew I believe it would be better to change the way you are displaying % gained. Take Extreme-os for example. The most popular system. In one area it shows 264% and the other area it shows 136%. That is such a huge spread how does one know wich one to use? Thanks

---

<div class="post-metadata">

**Author:** ![MatthewKlein](https://yyz2.discourse-cdn.com/flex028/user_avatar/forums.collective2.com/matthewklein/32/21382_2.png) [@MatthewKlein](https://forums.collective2.com/u/MatthewKlein)\
**Post date:** [June 3, 2007, 1:13pm UTC](https://forums.collective2.com/t/calculations/4204/2 "2007-06-03T13:13:28Z")

</div>

One is compound return. You are correct; I have been meaning to make both values the same (I will use compound for both).

---

<div class="post-metadata">

**Author:** ![JulesEllis2](https://avatars.discourse-cdn.com/v4/letter/j/cab0a1/32.png) [@JulesEllis2](https://forums.collective2.com/u/JulesEllis2)\
**Post date:** [June 3, 2007, 1:24pm UTC](https://forums.collective2.com/t/calculations/4204/3 "2007-06-03T13:24:07Z")

</div>

See the guide for advanced statistics, p.46, remark 1. In the advanced statistics, daily values, full history you see for extreme-os  
  
  
  
Annualized return (arithmetic extrapolation) 2.669  
  
Compounded annual return (geometric extrapolation) 1.364  
  
  
  
Extreme-os is compounding, so the last estimate is more appropriate. This depends on the system.

---

<div class="post-metadata">

**Author:** ![MatthewKlein](https://yyz2.discourse-cdn.com/flex028/user_avatar/forums.collective2.com/matthewklein/32/21382_2.png) [@MatthewKlein](https://forums.collective2.com/u/MatthewKlein)\
**Post date:** [June 3, 2007, 6:01pm UTC](https://forums.collective2.com/t/calculations/4204/4 "2007-06-03T18:01:56Z")

</div>

Thanks Jules. It is an astute point that the correct stat to use depends on the system and its trading style. That said, I should at least properly label both stats so that traders can make an informed decision about which is more applicable.