I don't think it's possible to determine unless we have additional information. Consider the first two volume buckets:
$$V_1 = V_{1A}+V_{1B}+V_{1C}$$ $$V_2 = V_{2A}+V_{2B}+V_{2C}$$
where $V_{iA}$ represent the cumulative volume 24 hours ago only in bucket $i$ and not in time bucket $i+1$ and $V_{iC}$ represent the newest cumulative volume only in bucket $i+1$ and not in time bucket $i$.
It's clear in the above setting that $V_{1B}+V_{1C}=V_{2A}+V_{2B}$, there are still too many variables than equations (an underdetermined system) so unless we have an additional clue, we can't solve this.