Set a minimum amount for formula

So, I have this small calc sheet. I have some set of values that decrease when I input my numbers on the right. One of these cells, likely inelegantly, takes values from two different cells, but one of them should never go below “0” when subtracting. I want that cell to know that even if it goes subzero, it should always display and have as its value no less than “0”.

Thanks for the help!

Use MAX(A1;0) in the calculation for that cell if it is A1, for example.