Account balance?

Bought this app for the design, not to mention its convenience.

However I wish there will be new features such as "account balance" in the next update.
I believe richer people (probably) dont need such features, but as a poor college student who has just enough to make a living each month, I believe this is really necessary... Its hard to do the math each time, subtracting the spending from the saving... I know that currently if you tap the month you can see the total saving and spending, but why not just help us do the math and leave a little space for "balance" ?
I think it might help to make an "on/off" button since some (or maybe most) wont need this.
Otherwise a perfect app!
Love it!
Best place to spend a few dollars!

gragra22 about Weple Money Pro, v3.1.0