Could someone explain the amount I obtained after selling?

On any exchange there are always *buyers* and *sellers* placing orders.

Suppose the order book looked like this:

* User A has a buy order at 63,000
* User B has a buy order at 64,000
* User C has a sell order at 66,000
* User D has a sell order at 67,000

What is the “current price” on the exchange?

* The highest buy price (64,000)?
* The lowest sell price (66,000)?
* The buy/sell midpoint (65,000)?
* The “latest trade” price?

Clearly, there is no single price.

If you place a *market* sell order, you’ll typically get the current highest buy price.

If you place a *market* buy order, you’ll typically get the current lowest sell price.

If you place a *limit* order, your order will sit in the order book until your target price is met. It won’t execute *immediately* (or possibly at all), but if/when the order goes through, you’ll get the price you wanted.

When you place a market order, it’ll execute *immediately* but you may not get the price you wanted. You’re paying extra for the convenience of an instant sell.

This extra cost is the “spread”. Smaller exchanges with fewer users may have a larger spread because there are fewer orders in the books.

Use *limit* orders instead of *market* orders if you want to avoid it.