Creating a macro to add and subtract from a standing count

Hello. First off, I wanted to say that my knowledge of excel is very limited and I have nearly no experience with programming.

That being said, i'll try to explain what i'm trying to do.

I'm building a spreadsheet for work to better control a portion of our inventory and streamline workflow. We produce baked goods and ship nationally, so we can't allow our kitchen to bake a large amount....I just realized all of this is unnecessary information.

Anyways, please see the picture attached.

I'm trying to create a button where the black area is. The items in the "C" and " i " columns will be entered by a user. Items in the "C" column will be subtracted from items in the "F" column when the button is pressed, and items in the " i " column will be added to items in the "F" column when the button is pressed.

If someone is willing to help with this issue or to point me towards some easily understood how-tos, i'd be very grateful. thank you.