Strange trade phenomenon

[bittkoiner]

Hi!
I sold 110 altcoin at BTC 0.00790
Some days later I bought back at the lower spot 0.00750 and only get 99

Why did get so few when the spot price was lower?

[Nullu]

Hi!
I sold 110 altcoin at BTC 0.00790
Some days later I bought back at the lower spot 0.00750 and only get 99

Why did get so few when the spot price was lower?

What exchange? Some exchanges have fees when you trade coins.

[Wilhelm]

Hi!
I sold 110 altcoin at BTC 0.00790
Some days later I bought back at the lower spot 0.00750 and only get 99

Why did get so few when the spot price was lower?

0.007xx is the BTC/Altcoin ratio. Calculation works something like this. I believe you interpreted the ratio the wrong way around.
Can't reproduce your result fully but I think you might find it helpful anyway.

A * 0.00780 = 110
A = 13924
remove .6% fees (an exchange with high fees)
A = 13840
(A is altcoins)

13840 * 0.00750 = 104
remove .6% fees (an exchange with high fees)
Result = 103

[bittkoiner]

Ok thank's!
It all make sense. And the spot price is not the real price, just in the middle of both sell and buy price?

[pineapples]

i noticed BTER occasionally "modify" my trades.
not so as stuff disappears into the void, just changes a sell 100 into a sell 90 for example.

i am not entirely certain things don't go into the void :p but from my eyeballing it's just an entry change rather than a vanishing coins trick.

, go into your trade history and check the numbers in there for differences.

[Wilhelm]

i noticed BTER occasionally "modify" my trades.
not so as stuff disappears into the void, just changes a sell 100 into a sell 90 for example.

i am not entirely certain things don't go into the void :p but from my eyeballing it's just an entry change rather than a vanishing coins trick.

, go into your trade history and check the numbers in there for differences.

OK again this is normal as far as I can interpret your situation.

You want to sell 100 coins. You put 100 coins up for an X amount.
I want 90 coins for X amount.
The exchange sells 90 of your coins to me. You see a partial sale of 90 coins.
You now have 10 coins for sale at X amount and the money for the 90 coins.