R31802A Debit and Credit don't balance for IM item transaction

Hi

I have a problem where the Debit amount doesn't match the Credit amount for an IM transaction during the R31802A procss which prevents the batch being created.

The Item has a primary UoM of RL (Roll) and and is on the BoM and Parts List with a UoM of CM (Centimetres). The conversions is 1 RL = 45000 CM. The Cost is £4.81 a RL and 687204000 CM's have been issued. It looks like a rounding issue but I cant figure out how to fix it.

IM Credit = 73,454.47     which is (687204000 / 45000) * 4.81

IM Debit = 73,454.55