Bitcoin client sync and spending

Im struggling to work this out.

I have an old wallet that I sent some btc from about 2-3 years ago but I used the offline sending method, I think coinb.in

I just needed to make another payment, and ive done the sync to now.

The transaction i did those few years ago, is that going to show in the client? It does show i made a transaction but, the total remaining coins/balance seems higher than what I expected.

Its not this exact amount but just for example

I thought I had 1 btc but a couple years ago I sent 0.25 btc, and im expecting to have 0.75 left, but I dont remember if I actually sent the 0.25. As in the balance it shows as 0.9btc, so maybe I only sent 0.1 btc.

Would that offline transaction show up in the client and thus calculate correctly?

Or is something wrong?