How to account for coins collected correctly

[Kaolant]

I have a Necta Samba Classic vending machine, and unless I'm missing something really obvious, I'm at a loss at how to account for the coins I collect.

What I mean is, if there's £50 of coins I collect at a site visit, obviously that £50 itself is not revenue as I would have to account for the change my machine has given since the last visit too. So maybe £35 of that is revenue for example.

But I can't figure out how to get the screen to display how much change is in the change tubes at any given time. From the screen I can only see an option to fill the change tube or empty it, not to view how much is in there/how much change the machine gave.

[Coin Operated Group]

just log whats in the cashbox Thats your income. Chaneg in mech would be added as an expnse when filling. You dont need to be that precise