Allow rounding when all value amounts are fixed

[Daniel]

I am trying to use this entry that beangulp exports:

2023-12-22 * "Buy XYZ" "Buy 86.546 XYZ with 6987.69 USD @ 80.74 USD/XYZ"

Assets:Account:USD -6987.69 USD

Assets:Account:XYZ 86.546 XYZ @ 80.74 USD

 But when I run bean-check, I get: Transaction does not balance: (0.03404 USD)

XYZ is tracked to 3 decimal places and USD is tracked to 2 decimals. 

The way the institution does the calculation is to divide the USD by the price to get the amount of XYZ, then rounds to 3 decimal places.

6987.69/80.74 = 86.5455783998 -> 86.546

However, it looks like beancount tries to multiply 86.546*80.74=6987.72404, which gives the 0.03404 error.

I would rather not have a

6987.69 USD @ 1/80.74 XYZ entry, as because I am using beangulp, I think it would convert it to an ugly decimal after exporting

Is there a way to let beancount allow this entry without destroying the tolerances for all the transactions?

[Max Tower]

One option is to add a blank account to the list to gobble all the rounding errors like this:

2022-11-16 * "BUY AAPL stock"

Assets:Brokers:Etrade:AAPL 145 AAPL @ 114.567 USD

Assets:Brokers:Etrade:Cash -16611.20 USD

Equity:Rounding-Errors:Etrade

I think if you do this, you'll want to make sure that it doesn't deviate from your real account's rounding so your beancount remains in sync with the real account.

Max