Organizing Money on Spreadsheet

Hello everyone, me and my friend having started selling clothes together, and we want to be able to cleanly split our profits with each other. However, I will be the one holding all the money we make since I’m doing most of the customer interactions, so it’d be easier if the costumers straight up pay me. To help me with this, I thought it’d be a good idea to organize our money on an Excel spreadsheet, and more to help me because the money we make would be going to my bank account, so I don’t want to mix our profit with the money I already have or get through other sources for myself. Therefore, my question is, would I be able to make a spreadsheet where I can have MY money in one column, then the money we make in other, and have the spreadsheet tell me the total of both columns? Also, is there a function that’d let me add or subtract money to my column and give me the resulting number, and the same for our profit column? I’d say those are my main concerns, but I would greatly appreciate if anyone had any other tips that’d make keeping track of the money like this even easier!