# I need some help getting my numbers down

Discussion in 'General Culinary School Discussions' started by josh1110, Jul 22, 2013.

1. ### josh1110

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Culinary Student
Hey everybody! Hopefully this is the right section ,if not im terribly sorry and feel free to remove it. I'll keep this short and sweet as best as i can.

So anyways somebody in the kitchen I work for got some product for a family event and asked me to calculate how much it would cost him for each piece of product.

So anyways this is basically what he took and I just want to know what the right formula is because i've tried different ways and got different numbers.

Employee took:

7oz spicy pecans

14 oz of  a vinaigrette

10.5 oz cabbage

Now the order form I'm following says:

one kg of spicy pecans is \$23.92

\$4.01/litre

\$0.43/lb

So could anybody help me out? Sorry again if this is the wrong section. I know the first thing is to convert the two numbers into the same measurements so all into oz's or all into kgs, etc...

2. ### shootoo

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I'll bite

I'm assuming the 4.01/l is for the vinaigrette and the 0.41/lb is for the cabbage

2.204 lbs per kg
\$10.85 per pound
\$0.62 per oz
\$4.34 worth the pecans

1L is 0.264 gal
128oz is 1 gal
33.79oz is 0.264 gal
\$0.12 per oz
\$1.68 of vinaigrette

16oz per lb
\$0.28 of cabbage

3. ### josh1110

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Thank you and no your assumption was correct.

Mind giving me the math forumla so i can study and get it down? thanks

Last edited: Jul 22, 2013
4. ### petemccracken

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This sounds suspiciously like a homework assignment /img/vbsmilies/smilies/laser.gifbut we'll assume it isn't /img/vbsmilies/smilies/lol.gif

You're approach is fundamentally correct, get everything into the same unit system.
1. Select the system, US or Metric
2. Convert amounts and prices to a single system.
A. 7 oz pecans X ??g/oz =  nn grams of pecans; \$23.92/1Kg X nn grams of pecans = \$aa/serving of pecans

B. 14 floz X ??mL/floz = bb mL vinaigrette; \$4.01/L X bb mL = \$cc/serving of vinaigrette

and so forth.

Don't forget to convert Kg to grams, L to mL, etc.

5. ### josh1110

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Thanks that explains it a little better and no its not a homework assignment...just trying to figure out this, food cost and labour.

Am I getting something wrong cause i'm getting a diferent price for the pecans?

My math I did was:

7 oz X 28.3495(how many g fit into an oz)  = 198.4465grams

23.92/1000 x 198.4465grams = 4.74684028

Last edited: Jul 23, 2013
6. ### petemccracken

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Possibly:
• \$23.92/1Kg = \$0.02392/g
• 7 ounces X 28.3495231 g/oz = 198.45 g
• 198.45 g X \$0.02392/g = \$4.75
Looking at it another way:
• \$23.92/1Kg X 1Kg/2.2 lbs = \$10.873/lb
• \$10.873/lb X 1 lb/16 oz = \$0.6795/oz
• \$0.6795/oz X 7 oz = \$4.76

7. ### shootoo

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I did all of mine on my phone, so chances are I mistyped a number or didn't round the right decimal place or something in my rush

8. ### chefedb

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Do your own homework, that's how you learn.

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