#### HoneyLady

##### Well-Known Member

- Joined
- Nov 11, 2013

- Messages
- 144

- Reaction score
- 171

Cana answered your question, but I'll do it, too.

*1.05 oz Castor x {$29.95 / 112} = 1.05 x 0.27 = $0.28*

Where did the "0.27" number come from?? Did you divide the $29.95 into 112??? Did you multiply the 1.05 with some number??

Where did the "0.27" number come from?? Did you divide the $29.95 into 112??? Did you multiply the 1.05 with some number??

The amount of Castor need for my recipe according to Soap Calc is

**1.05**oz.

I can buy it from a supplier for

**$29.95**for

**112**oz. So, the supplier charges me

**$ 0.27**per ounce for that product.

I need

**1.05**oz @

**$0.27**per ounce. That costs me

**$0.28**.

I divided the numbers in the brackets first : {$29.95 / 112} The slash symbol means divide. (No, I don't think you're stupid. *I* did not understand that once upon a time. So just in case you had my math teacher, too . . .)

The answer to that (0.27) multiplied by my amount (1.05) gave me my final cost of castor oil for this recipe =

**$0.28**.

Then I figured the cost per 2 pound batch, which I then cut into 6 bars. That gave me a cost per bar, from which I can decide how much to charge per bar wholesale or retail.

Yes, there are other ways to figure it. This is what I used for the example. Spreadsheets are great tools --

**if you understand how they work.**As Cana very correctly pointed out, you have to be able to recognize if the answers it gives you are reasonable or not. That particular point is a real problem for me -- my learning issues make it extremely difficult to recognize those patterns, and if something is wonky.

Good questions! Great answers! As math challenged as I am, I am amused and very happy that all my hard work to learn this stuff for myself can help me explain it to someone else.

And for the record:

**Fortunately, this is getting better as time passes.**

*I genuinely do not believe that we math phobic people are stupid. I really think we learn in different ways than others, and many teachers do not know how to teach it in ways we need, to understand it.*PLEASE ask if you have more questions! We are all here to learn from one another. I have sticky notes from a half dozen members of the forum in my binder. I expect that will increase!:razz:

~HoneyLady~