Difference between division and multiplication percentage?

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Nivekm76 -  
 Nivekm76 -
Hello,

100 x 1.1 = 110
100 : 0.9 = 111.11

Is A x (1 + B/100) equal to A : (1 - B/100)
Let A be the initial value and B the percentage to achieve.

In terms of calculating percentage increases and decreases.
Could you explain to me why I don’t get the same result?
To me, it’s the same thing, that is to say a 10% increase.
Thank you.

Configuration: Windows / Mozilla 11.0

2 answers

  1. baladur13 Posted messages 47354 Registration date   Status Moderator Last intervention   14 400
     
    Good evening

    This conversation has little to do with office automation...
    However
    There is nothing to explain
    Multiplying by 1.1 corresponds to adding 10%
    Multiplying by 0.9 corresponds to subtracting 10%
    Dividing by 0.9 corresponds to nothing (except adding about 11.11111%!!!)

    Dividing any number a by a number b that is not zero is equivalent to multiplying the number a by the inverse of the number b
    0.9 does not have 1.1 as its inverse... The inverse of 0.9 is 1.11111111111 (from 1 to infinity).

    --
    It is very difficult to catch a black cat in a dark room.
    Especially when it is not there...
    16
    1. Nivekm76
       
      Thank you for your response.
      0