If these are both meter reads, then I'll point out that their one is missing a digit (unless you simply didn't include another 0)My energy supplier has estimated my usage at 07604.00 but the meter is showing 015930.05 seems to be a huge difference!
Having worked in an energy company, missing a digit for a meter read does happen occasionally.
Perhaps their estimated read should be 017604
thanks everyone for the replies though. Appreciated.