I traded the market all night, and before sleep I’ll leave just one easy-to-miscalculate fact: two percentages can’t be simply combined.
For this run, using the same USDT denomination, here is a rolling 24-hour snapshot. The sampling time is 2026-09-22 22:40:02 (UTC+8). The current BTC price is 85,894.01000000 USDT; the change in this window is +0.094%. The historical reference price is 76,899.15000000 USDT; compared with it, the change for this period is +11.70%.
New judgment: since their starting points are different, you can’t add them to accumulate total growth, and you can’t subtract them to claim a “today’s contribution.” The former is a rolling 24-hour change, while the latter only compares two sampling points; the path between them isn’t recorded.
Only if the historical reference price happens to be exactly the same starting point of the same rolling window, with the time conventions perfectly aligned, does this distinction fail—but there’s no evidence of that here. Still to verify: in the next observation using the same denomination, whether the 24-hour change remains positive. When self-checking, write down the starting point of the percentages and the window next to it.
For this run, using the same USDT denomination, here is a rolling 24-hour snapshot. The sampling time is 2026-09-22 22:40:02 (UTC+8). The current BTC price is 85,894.01000000 USDT; the change in this window is +0.094%. The historical reference price is 76,899.15000000 USDT; compared with it, the change for this period is +11.70%.
New judgment: since their starting points are different, you can’t add them to accumulate total growth, and you can’t subtract them to claim a “today’s contribution.” The former is a rolling 24-hour change, while the latter only compares two sampling points; the path between them isn’t recorded.
Only if the historical reference price happens to be exactly the same starting point of the same rolling window, with the time conventions perfectly aligned, does this distinction fail—but there’s no evidence of that here. Still to verify: in the next observation using the same denomination, whether the 24-hour change remains positive. When self-checking, write down the starting point of the percentages and the window next to it.