Credit Score/FICO question

How long does it take for my credit score/FICO to change?

I just checked my score with Equifax and its a lot lower than I
expected.
2 years ago with Equifax it was: 810 out of 850
it said: Key Factors Affecting Your Score:
The amount owed on your revolving/charge accounts is too high
There is a lack of recent (non-mortgage) installment loan information
being reported on your credit file.

I just checked on Friday and my score is: 766 out of 850! So it went
down 50 points!
For: Key Factors Affecting Your Score:
It said the two same things...BUT there is now a third one:
You have too many bank/national revolving accounts with balances being
reported.

I ALWAYS pay my bills in full every month on time.
The ONLY change is:
a couple of my cards were cancelled due to inactivity, so I called
them and got them re-instated.
So in the past, I used mainly 2 cards, now I rotate between 4-5 cards.
Balances are the same, but now its spread out.

So I guess that looks worse.
So now I will go back to using only 1 or 2 cards, and keep the rest in
reserve.

So couple of questions:
1. How long does it take for my credit score/FICO to change? Once I
go back to only using 1-2 cards, how long before my score goes up?
2. from the key factors, it said: "The amount owed on your revolving/
charge accounts is too high"
I dont understand this.
According to my credit report: I have a balance of $650, and I have
$143,550 available.
So how is my amount owed that high? So $650 out of $143,000 is not a
high balance. If my balance of $100k out of $143k, then thats a high
balance.
3. "There is a lack of recent (non-mortgage) installment loan
information being reported on your credit file."
So they are refering to a car loan? or a student loan?

Thanks
.

Relevant Pages

  • Re: Providiots trying to raise my interest again and rant
    ... closing the account and contacting the big three ... you can call your credit card ... Destroy the high-interest cards ... > a balance is paid off, ...
    (alt.support.stop-smoking)
  • Re: Credit Score/FICO question
    ... I'm not sure whether a student loan counts as an installment loan or not. ... Credit bureaus don't know that. ... So in the past, I used mainly 2 cards, now I rotate between 4-5 cards. ... It probably takes at least two months before even the first zero balance ...
    (misc.consumers)
  • Re: Credit Score/FICO question
    ... So in the past, I used mainly 2 cards, now I rotate between 4-5 cards. ... How long does it take for my credit score/FICO to change? ... According to my credit report: I have a balance of $650, ...
    (misc.consumers)
  • Re: Providiots trying to raise my interest again and rant
    ... Don't be applying for new credit:) Take care ... doesn't sound like 0% interest is in your cards ... > maybe i'll try balance transfers as i get open ... I have a student loan i'll be ...
    (alt.support.stop-smoking)
  • Re: Providiots trying to raise my interest again and rant
    ... maybe i'll try balance transfers as i get open credit available. ... Destroy the high-interest cards BEFORE they're ... > paid off so you're not tempted to use them once some credit is available. ... > See if you can transfer balances from high-interest accounts to ...
    (alt.support.stop-smoking)