I've recently started making calls to Binance API, specifically this: https://api.binance.com/api/v3/ticker/24hr?symbol=BTCBUSD
This call only seems to have 1 parameter (symbol). My question concerns the meaning of the returned fields, or how to interpret them.
Here is a sample of returned data from the above call.
{
"symbol": "BTCBUSD",
"priceChange": "1519.63000000",
"priceChangePercent": "3.308",
"weightedAvgPrice": "47059.10006256",
"prevClosePrice": "45935.14000000",
"lastPrice": "47454.77000000",
"lastQty": "0.08014400",
"bidPrice": "47454.76000000",
"bidQty": "0.00858100",
"askPrice": "47454.77000000",
"askQty": "0.22488900",
"openPrice": "45935.14000000",
"highPrice": "48444.00000000",
"lowPrice": "45044.05000000",
"volume": "18094.48897600",
"quoteVolume": "851510367.30253731",
"openTime": 1614347997320,
"closeTime": 1614434397320,
"firstId": 116330237,
"lastId": 117165845,
"count": 835609
}
What does openPrice and prevClosePrice actually mean? They change between each call.
How does priceChange and priceChangePercent work? What fields are these values calculated from? And why are they markedly different to what I see when viewing Binance site for BTC/BUSD 24 HR period at the same time as I make the call?
Can anyone shed some light on these figures? I've searched online but not been able to find anything descriptive.
When I calculate the price change percent based on the difference between lastPrice and openPrice I get the following result which does match the priceChangePercent value.
((47454.77 - 45935.14) / 45935.14) * 100 = 3.308
