Help pls, doing challenge but I suck at math

Fit_Happens_2021
Fit_Happens_2021 Posts: 303 Member
edited November 17 in Health and Weight Loss
As the title says, I am doing a challenge with another person, we are recording what we have lost (or gained) once per week and seeing who has lost the highest percentage, then the winner gets a small prize, but I suck at math.

How would I work out the following:
Starting weight 141.2 lbs
weight after one week - 139.2 lbs - so a 2lb weight loss.
How do I work out what 2lbs is as a percentage of 141.2?

I know 1 percent would be 1.41lbs, but how do I find the accurate amount that 2lbs would be?
I know there must be a formula, but it is many many years since I was at school so pls be kind in your answer, thank you :blush:

Replies

  • annacole94
    annacole94 Posts: 994 Member
    2/141.2 x 100 = 1.41%
  • Jruzer
    Jruzer Posts: 3,501 Member
    100*(2/141.2) = 1.42%
  • fitoverfortymom
    fitoverfortymom Posts: 3,452 Member
    fitwatch.com has a weight loss % calculator so you don't have to do the maths. i am also not a fan of the maths.
  • markrgeary1
    markrgeary1 Posts: 853 Member
    You have two examples that are correct. It's good to understand basic math.
  • Fit_Happens_2021
    Fit_Happens_2021 Posts: 303 Member
    Thank you!
  • LessCookiess
    LessCookiess Posts: 538 Member
    If you want to figure out how much 2% would be continue plugging in numbers until that number comes up with. Good luck!
  • Jruzer
    Jruzer Posts: 3,501 Member
    markrgeary1 wrote: »
    You have two examples that are correct. It's good to understand basic math.

    Yes, but @annacole94 and I are off by 0.01%! ;)
  • Duchy82
    Duchy82 Posts: 560 Member
    edited March 2017
    Jruzer wrote: »
    markrgeary1 wrote: »
    You have two examples that are correct. It's good to understand basic math.

    Yes, but @annacole94 and I are off by 0.01%! ;)

    That is just a rounding error 2/141.2*100= 1.416 rounded up 1.42% :D
  • markrgeary1
    markrgeary1 Posts: 853 Member
    Duchy82 wrote: »
    Jruzer wrote: »
    markrgeary1 wrote: »
    You have two examples that are correct. It's good to understand basic math.

    Yes, but @annacole94 and I are off by 0.01%! ;)

    That is just a rounding error 2/141.2*100= 1.416 rounded up 1.42% :D

    Yes
  • mcraw75
    mcraw75 Posts: 99 Member
    edited March 2017
    (141.2-139.2) / 141.2 X 100
  • Jruzer
    Jruzer Posts: 3,501 Member
    Duchy82 wrote: »
    Jruzer wrote: »
    markrgeary1 wrote: »
    You have two examples that are correct. It's good to understand basic math.

    Yes, but @annacole94 and I are off by 0.01%! ;)

    That is just a rounding error 2/141.2*100= 1.416 rounded up 1.42% :D

    I know. I was being facetious. Hence the ;). :D
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