RE: Splinterlands DEC-Grain Pool Current APR: 22.27%

Excited for the future tweaks to fine-tune APR accuracy

It's not as much about accuracy as it is about fluctuating swap volume. If one week a whale swaps a lot of grain and the next week the swap volume drops by comparison, then, the APR determined based on the swap fees of week 1 is much higher than the APR calculated based on the swap fees of week 2.