A balancing act

Two merchandising outlets.
Four cash registers.
12 pieces of paper at the end of the night.
Cash summary sheet.
visa summary sheet.
end-of-day summary sheet ......
None of which ever seem to balance.
Except the other night.
We almost balanced.
Just 1.65 euros out.
From 30,000 euros worth of takings (approx $aus 50,000).