Calculate Proportional Amounts rounding direction

[brunoguerios]

Both v2 and v3 have different calculateProportionalAmounts for amounts in or out.

Should we consider adapting b-sdk to follow that based on how/where calculateProportionalAmounts is used?

e.g. following that logic, RemoveLiquidityRecovery should round down results

[johngrantuk]

@brunoguerios - you've handled this now right?

[brunoguerios]

No. I handled cow-amm proportional math. This issue is meant to replicate the approach for v2 and v3 proportional math (i.e. the other helper method)