Question for the mathematician out there...

Question

How do you calculate percentage increases with negatives involved?  For example, I took my bankroll from -$91 to $240.  What percent increase is that?Thanks in advance.

SteelCash · Answer

How do you calculate percentage increases with negatives involved?  For example, I took my bankroll from -$91 to $240.  What percent increase is that?Thanks in advance.

mattbrot · Answer

like anyone can even know that

Halvsies · Answer

Is it possible to have a negative bankroll? Either you have one or you don't. How can you bet any money if you don't have a bankroll?

You started a new bankroll and you are now up to $240.

NEXT!.........

ClubDirt · Answer

it&#x27;s obviously not a traditional percentage increase due to the negative number but as degenerate gamblers we can safely say this is a 363.7% increase in absolute terms.

Raiders22 · Answer

This simplifies it somewhat---just remember the l-91l is the absolute value of -91 etc.

[ ((V₂ - V₁) / |V₁|) * 100 ]

= ((240 - -91) / |-91|) * 100
= (331 / 91) * 100
= 3.637363 * 100
= 363.7363% change

= 363.7363% increase

FiatLux4 · Answer

Club and Raiders are bang on.

BigGame90 · Answer

-91 to 0 one turn(100%)0 to 91 two turn(200%)91 to 182 three turn(300%)182 to your current number  Three full turnarounds =300%then calculate the change. 58/91=64%364%Don&#x27;t mess around with the crazy equations, you&#x27;ll drive yourself crazy. Do it my way and fail algebra even though you got the same answer in a third of the time and don&#x27;t have to remember the crazy equation.

SteelCash · Answer

Interesting.  I&#x27;m a numbers guy and this stuff is good to know.  I thought the response would be something like "That&#x27;s impossible to figure out.  It&#x27;s like going from zero to 100."Again, good stuff guys.  When I get to $5,000 I&#x27;ll come back just to get a pat on the back.

-29- · Answer

I&#x27;m not surprised to hear you say that, as grasping even basic mathematical properties has always been elusive for democrats.

Dutch1976 · Answer

[Quote: Originally Posted by -29-]   I&#x27;m not surprised to hear you say that, as grasping even basic mathematical properties has always been elusive for democrats.  [/Quote]You&#x27;ve never seen the movie Napolean Dynamite?Turn a movie reference into a political dig....Yawn.

mattbrot · Answer

[Quote: Originally Posted by -29-]   I&#x27;m not surprised to hear you say that, as grasping even basic mathematical properties has always been elusive for democrats.  [/Quote]Kewl story bro However, you are massively incorrect.1) I am a non-partisan independent2) I was quoting a movie line and not attempting to be serious.

esplanade · Answer

Decent efforts but incorrect. Suppose you went from $5 to $240, your return would have been 4800%, and you dug yourself out of a deeper hole, so in theory your return was greater than in the first case. The -$91 is important to establish how much you increased the balance of your account, but it is in no way your basis (meaning that it is not the denominator in the computation). Those efforts were just silly. To make a meaningful computation, one would have to know your average stake.

To further point out how ridiculous the former computations were:
had you started at -50, these guys would have quoted you a higher %.

Halvsies · Answer

OMG, this is still going on?&#xD;&#xA;How does one have a NEGATIVE bankroll? What did he bet with to get to $240? Once your bank roll goes to $0 you have NO MORE BANKROLL. Therefore, you start a new one with whatever you make your next initial bet with.....jeez!&#xD;&#xA;By the way. There are 3 kinds of lies in this world: lies, damned lies, and statistics.

rr207 · Answer

friggin smart

thirdperson · Answer

Halvsies is right.  After loss of entire bankroll, there is no money to gamble with.  So there must be a new deposit at sportbook.  So what is the  deposit?  Then percentage change in new bankroll can be calculated.

Kurshka · Answer

I think you are missing the point. Yes its possible to be -91 on the ledger if you are using a bookie. Its called line of credit. But Steel why is this information even remotely important to you.

esplanade · Answer

[Quote: Originally Posted by Halvsies]  OMG, this is still going on?&#xD;&#xA;How does one have a NEGATIVE bankroll? What did he bet with to get to $240? Once your bank roll goes to $0 you have NO MORE BANKROLL. Therefore, you start a new one with whatever you make your next initial bet with.....jeez!&#xD;&#xA;By the way. There are 3 kinds of lies in this world: lies, damned lies, and statistics.  [/Quote]No shizz sherlock

HutchEmAll · Answer

An example:1/1/14 - you start with $500 and lose it all AND an additional $91 by 3/31. 4/1 you reload for $500 to pay off the $91 and re-charge your balance (now $409) and turn that into $1,000.  Since 1/1, your bankroll was $1,000 and your current balance is $1,000. 0 percent increase. Since 4/1, your bankroll was $409 and your current balance is $1,000.  You can do the math as to the percent increase (I hope).You always need a reference point re. stats.  And you can&#x27;t bet with a negative balance....any credit extended would have to be figured into your bankroll balance.

HutchEmAll · Answer

You could also just have paid off the $91 resulting in a loss of $591 first quarter. Then you could start over with a roll of $500 for 2nd quarter. You turn that into $1,000 and you have increased your roll 100% for 2nd quarter.

Even if you are betting on credit, you have to take that into account as it pertains to you bank roll when computing percentage increases because you can't bet negative $.

SteelCash · Answer

[Quote: Originally Posted by Halvsies]  OMG, this is still going on?&#xD;&#xA;How does one have a NEGATIVE bankroll? What did he bet with to get to $240? Once your bank roll goes to $0 you have NO MORE BANKROLL. Therefore, you start a new one with whatever you make your next initial bet with.....jeez!&#xD;&#xA;By the way. There are 3 kinds of lies in this world: lies, damned lies, and statistics.  [/Quote]My bookie never collects from me until I get down around -200.  Then we&#x27;ll settle up.  Same goes for if I&#x27;m up.  We&#x27;re not gonna meet if I&#x27;m up $50.  We&#x27;ll wait til I get around $200.

SteelCash · Answer

Just curious that&#x27;s all.  I&#x27;m sure all of us think of things and think, "I wonder how you would figure that?"

Raiders22 · Answer

&#xD;&#xA;Huh? Obviously he was asking mathmatically.  Sure you can do it in your head like one guy mentioned if you have the understanding of it, with most standard math.  But I took the formula right from a calculator site to show him how it was done---converting the negative to absolute, etc.  All you are you doing is confusing the issue.  Like the folks that don&#x27;t understand where the missing dollar in the old riddle went.  Or why when you take 10% from 100 then add 10% to 90...etc.etc.  Average stake had nothing to do with his question, nor was it inferred.

esplanade · Answer

All I am saying is that using the -91 to establish the change is correct, using it as the denominator is not. The examples readily show that. When you start with $50 it is obvious that you have $50 to work with, making that the basis; when you start with negative $91, it in no way suggests that you have $91 to work with.

What does doing it in your head or on a calculator or with a missing dollar have to do with anything??

Question for the mathematician out there...

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