Percents

• Feb 3rd 2009, 11:03 PM
Liza88
Percents
How can I solve this:

If a certain price goes down 5,8%
how many procents the price should
rise that it would be as much as it
used to be.

Thank you!
• Feb 3rd 2009, 11:26 PM
princess_21
Quote:

Originally Posted by Liza88
How can I solve this:

If a certain price goes down 5,8%
how many procents the price should
rise that it would be as much as it
used to be.

Thank you!

wat do u mean by ur question? if the price goes down by 5.8% say for example $25 that will be$23.55.
then the rate that it should increase to be $25 again if that's it, then you'll need$1.45 for it be \$25 again.

$R=\frac{P}{B}$

$R=\frac{1.45}{23.55}$

$R=6.15\%$

i'm not really sure bout it. correct me if I am wrong. :)
• Feb 3rd 2009, 11:45 PM
javax
Let v1 be the first price, v2 the second(down price), p2 be the percentage required.

now you have

$v1-0.058v1=v2$

$v2+p2 v2=v1$

From here you can find p2, which is the percentage required. (answer p2 = 6.15%). As it is mentioned in the above post.
• Feb 3rd 2009, 11:47 PM
princess_21
Quote:

Originally Posted by javax
Let v1 be the first price, v2 the second(down price), p2 be the percentage required.

now you have

$v1-0.058v1=v2$

$v2+p2 v2=v1$

From here you can find p2, which is the percentage required. (answer p2 = 6.15%). As it is mentioned in the above post.

thanks javax for the additional info.