How do you Calculate % of Weight Loss?

llbrixon wrote: »

How do you calculate percentage off of weight? What is 40% weight loss from 187?
What is 50% weight loss from 187? I am trying to set mini weight goal losses, can someone please help me figure this formula out?

Hmmm. That would be pretty aggressive goals.

So for a 50% weight loss - you'd divide 187 by 2 (for the easiest way). Otherwise it's 187x0.5 = 93.5. That's really low and wouldn't be a mini goal.

For mini goals, why not just do them by the actual weight versus percentage? I.E - 1st goal - 180, 2nd goal 170, etc.

Otherwise, if you want to complicate it a bit, then go by 1-7%. You'd do that by turning the percentages into decimals (moving it two places to the left). So if you were doing a 5% loss, it'd be 187x0.05 = 9.35.

You then subtract the 9.35 from 187 for the goal weight..which would be 177.65.

RoseTheWarrior wrote: »

Alright, alright, let the accountant save you from all the maths.

Rather than figure it out as above, use the remainder of 100%. So, if you want to know what 40% of 187 lbs is, that is obviously just 187 x .4 = 74.8 lbs. However, if you want to know your goal weight if your goal is to lose 40% of 187 lbs, then just multiply 187 x .6 = 112.2 lbs. If you want to lose 5%, and know what your goal weight should be, it will be 187 x .95 = 177.65 lbs.

See how easy that is? Less maths make me happy.

This is how I would figure it too (great accounting minds think alike and all.) Except for the last one I'd divide 187 by 2, move the decimal over two places, and subtract that from 187.

Are you looking to figure out 40% of your original weight or 40% off the weight you need to get to your goal weight and join the 40% club?

If the former, you've got your answers. If the later, subtract your goal weight from your starting weight and multiply the answer by 0.4

If you want to know what weight you need to achieve to reach that goal take the difference above and multiply by 0.6

One idea for easy-to-calc, mini weight loss goals is aim to lose 1% a week or say 3% a month. So if you're 187 that's 1.87 lbs. lost per week or (less aggressive), 1.87 lbs. x 3= 5.6 lbs. per month.

But as you lose re-calc your 1%.

llbrixon wrote: »

OK....I had this stuff all wrong... It was the percentage of the weight I wanted to lose. So...I needed to lose 37 pounds. So..,.37x0.4 equals 40%. . Right???

Yes.

I actually looked this up today...a girlfriend an I are having a challenge to see who can lose the greatest % of weight in 4 months...here is what you do. You take the #'s lost/start weight and multiply by 100. i.e. if you lose 20# and your start weight was 180 (20/180=.1111 times 100 )= 11.11%

Here's a joke:
How many fitness enthusiasts does it take to multiply 2 numbers?