Issue - Audit of Amount showing in the "Old Value" field is wrong
When the Amount was updated from £110 to £220 in the form, we can see in the Audit tab that the amount shows an Old Value of £136.72, which should be £110.
Updated again and Old Value showed £273.43 when it should be £220, so still incorrect
This needs to be corrected so that it properly reflects the right "Old Value" amount
