running total formula for inventory

i hope i posted this in the right place i am new here.
here is what i need i want to a running total that as i add it inceases and as i use the item it will subtract from the starting inventory example

i have 5000 bolts and use 1000 it shows 4000 then when i add 500 it shows 4500 and so on.
k4 would be my starting total cell h4 would be my subtract cell and i4 would be my add cell. i hope i explaned this right
this is for my nut and bolt inventory in my shop i am trying to make it simple for the guys that work with me so we know what we are using and when we need to order more.
thank you so very much
jeff

Would you not just use this formula in another cell?

=k4-h4+i4

If you wanted something a little more complicated maybe an example would be helpful

cheers

well i need it to hold the running total tho i guess i didn't explain myself very well sorry.
with a starting quanity. so if i 5000 and the add 50 i get 5050 and it i add another 200 i get 5250 and if i add another 200 i get 5450 then i use 100 it shows 5350 and so on i hope this helps explain better
thank you so very much
jeff

This is what I imagine you mean. Let me know if that's right.

Cheers

i'll try to add a example to my post tommorrow that will hopefuly make more sense i just have to get to bed i need to be up early and i will post it.
again thank you for taking the time to help me with this it is probably very simple but i am not do a good job at explaining myself very well lol
thank you
jeff

thank you that was easy and i hope this helps explain what i need.
i just need when you add to count for the total to hold it and every time i put another amount in the same cell and continue to incease and the same with when i minus inventory
thank you so very much
jeff

this might do the job i am going to try it out and see how it goes.
thank you so very much for all your help
jeff