Budget Income

I actually saw an idea about this but got declined.
The thing is I think it’s very common to have let’s say you have a food budget, and on one occasion you’re paying for your friends and they’re gonna pay it back tomorrow. Thus you only actually spend not 100% of that meal expense but only a portion of it.
There’s workaround like counting on calculator etc but that’s why the budgeting app existed, to make it simple for the user.