In reports used for reconciliation, the maximum number of decimal places is eight.
When your end-of day (EoD) Available balance is generated as a settlement, Checkout.com uses rounding towards zero.
This means a settlement can be off by a cent due to the remainder amounts in your Available balance.
For example:
EoD Available balance on****** ******T__: __25.6778 EUR
Settlement on T+1: 25.67 EUR
Remainder on T+1: 00.0078 EUR
Processing on T+1: 11.33760343 EUR
EoD Available balance on T+1: 11.33760343 + 00.0078 = 11.34540343 EUR
Settlement on T+2: 11.34 EUR
Remainder on T+2: 00.00540343