Question: Please help me find the closing prices and percentage changes (based on closing prices) for the S&P Bitcoin Index (SPBTC) on May 30, 2024, and May 31, 2024.
Answer: May 31, 2024: $9010.30 (a decrease of 1.61%)
May 30, 2024: $9157.32 (an increase of 2.21%)
Rounding errors are allowed.