<p>The simplest way to calculate would be:</p>

<p><code>averagecost = ((BTC[t0] x USD[t0]) + (BTC[t1] x USD[t1]) + (so on))/total_BTC</code></p>

<p>where <code>t0</code>,<code>t1</code> and so on are different time when you bought.</p>

<p>The above gives you the average cost for all your BTC</p>

<p>Now to know the profit, use the below formula:</p>

<p><code>profitloss = (current_BTC_price - averagecost) x total_BTC</code></p>

<p>If <code>profitloss</code> is negative, then you have a loss.</p>

<p>If <code>profitloss</code> is positive, then you have a profit.</p>

CC BY-SA 3.0
2017-09-25T18:51:00.373Z
2017-09-25T18:57:26.073Z
2017-09-25T18:57:26.073Z
remedcu
<ol>
<li>First of all, let a number of bitcoins be bought and <strong>(x1)</strong> is how much you paid for it.</li>
<li>Now the price of 1 bitcoin changes</li>
<li><p>Then you use the formula:</p>

<p><strong>x2= (New value of 1 bitcoin)*(Number of bitcoins you have)</strong></p></li>
</ol>

<p>Now you just find the difference between <strong>x1</strong> and <strong>x2</strong>. This will give you your profit/loss.</p>

<p>All you have to remember is the initial value. In your case it is 50.</p>

<p>Therefore,</p>

<p><strong>x1</strong>=50                             </p>

<p>your bitcoins, in this case, = 50/3916.74 ~ 0.0128</p>

<p><strong>x2</strong>= 4200*0.0128
      =  53.76</p>

<p>so your profit <strong>x2-x1</strong>= <strong>3.76</strong> is your profit</p>

CC BY-SA 4.0
2019-12-09T06:38:30.353Z
Be a lot nicer of someone could break this down simpler than the two answers shown, For example.. let’s say you buy $50 at $7500, and the price goes to $9000. What’s the profit margin? Should be $1500 right? That seems pretty simple.
El Sols
CC BY-SA 4.0
2019-12-09T06:45:22.633Z
But instead, it’s like $63 or something. Would love a formula that isn’t as ridiculous as the ones posted above.
El Sols
CC BY-SA 4.0
2019-12-09T18:18:01.997Z
@ElSols: No, $53.76 is correct. The profit margin is not the increase in the exchange rate, but the increase in the value of your own holdings.
Murch
CC BY-SA 4.0
2019-04-24T09:36:55.563Z
2019-04-24T09:36:55.563Z
Anonymous
<p>Lets say I buy $50 of a bitcoin for 3916.74, And then the price goes up to $4200. How Do I calculate how much I have made in profit?
As in What type of formula do I use to see how much more my $50 is worth now that the price is higher than when I bought it?</p>

CC BY-SA 4.0
2019-04-26T00:04:20.917Z
I'm voting to close this question as off-topic because it's a basic math question.
Pieter Wuille
<exchange-rate><price-volatility><price-discovery>
How Do I Calculate the profit of the value of my bitcoin?
HGMatt
# How Do I Calculate the profit of the value of my bitcoin?

(Asked by: username_0 on 2017-09-25)

Lets say I buy $50 of a bitcoin for 3916.74, And then the price goes up to $4200. How Do I calculate how much I have made in profit?
As in What type of formula do I use to see how much more my $50 is worth now that the price is higher than when I bought it?

**Tags:** exchange-rate, price-volatility, price-discovery

> **Comments:**
> **username_1**: I'm voting to close this question as off-topic because it's a basic math question.  

---

## 2 answers

### Answer by username_2 on 2017-09-25. Score: 3 | Accepted answer

The simplest way to calculate would be:

`averagecost = ((BTC[t0] x USD[t0]) + (BTC[t1] x USD[t1]) + (so on))/total_BTC`

where `t0`,`t1` and so on are different time when you bought.

The above gives you the average cost for all your BTC

Now to know the profit, use the below formula:

`profitloss = (current_BTC_price - averagecost) x total_BTC`

If `profitloss` is negative, then you have a loss.

If `profitloss` is positive, then you have a profit.


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### Answer by username_3 on 2019-04-24. Score: 2

1. First of all, let a number of bitcoins be bought and **(x1)** is how much you paid for it.
2. Now the price of 1 bitcoin changes
3. Then you use the formula:

   **x2= (New value of 1 bitcoin)\*(Number of bitcoins you have)**

Now you just find the difference between **x1** and **x2**. This will give you your profit/loss.

All you have to remember is the initial value. In your case it is 50.

Therefore,

**x1**=50

your bitcoins, in this case, = 50/3916.74 ~ 0.0128

**x2**= 4200\*0.0128
= 53.76

so your profit **x2-x1**= **3.76** is your profit

> **Comments:**
> **username_4**: Be a lot nicer of someone could break this down simpler than the two answers shown, For example.. let’s say you buy $50 at $7500, and the price goes to $9000. What’s the profit margin? Should be $1500 right? That seems pretty simple.  
> **username_4**: But instead, it’s like $63 or something. Would love a formula that isn’t as ridiculous as the ones posted above.  
> **username_5**: @username_4: No, $53.76 is correct. The profit margin is not the increase in the exchange rate, but the increase in the value of your own holdings.  

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