Results 1 to 4 of 4

Math Help - Can't find percentage increase.

  1. #1
    Newbie
    Joined
    Dec 2010
    Posts
    14

    Can't find percentage increase.

    So I got this problem

    Original Amount is 20 the new amount is 50


    I need to find the percentage increase I usually use this method.

    First find the increase from the original amount which is 30 (50-20)

    Then 30/20 = 1.5

    Then 1.5 * 100 = 150%

    Now that does not seem to be the right answer as I check my answer by going vice versa how shall I do this?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,863
    Thanks
    639

    Re: Can't find percentage increase.

    an increase from 20 to 50 is a 150% increase.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Oct 2011
    Posts
    16

    Re: Can't find percentage increase.

    Your answer is right, what do you mean it doesn't seem to be right by going vice versa?

    Remember that it is a 150% increase, but 50 is 250% of 20 (i.e. 100% + 150% increase).

    20 + 150\% = 20 + 1.5(20) = 2.5(20) = 50

    \frac {50}{2.5} = \frac {50}{\frac {5}{2}} = \frac {50}{1} * \frac {2}{5} = \frac {100}{5} = 20
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Dec 2010
    Posts
    14

    Re: Can't find percentage increase.

    oh maybe a i checked it wrong I usually use the percentage Multiplier to check my answers.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: October 21st 2010, 08:46 AM
  2. [SOLVED] Find corresponding percentage increase
    Posted in the Calculus Forum
    Replies: 5
    Last Post: October 6th 2010, 11:07 PM
  3. Replies: 7
    Last Post: August 30th 2010, 02:07 AM
  4. percentage increase
    Posted in the Algebra Forum
    Replies: 4
    Last Post: February 25th 2009, 04:31 AM
  5. Increase Percentage
    Posted in the Algebra Forum
    Replies: 7
    Last Post: April 24th 2008, 02:02 PM

Search Tags


/mathhelpforum @mathhelpforum