I’ve been getting my envelope budget set up and I have a category for tithing. We pay 10% of our income to tithing. I would love to set up my budget for tithing to be a reflection of a percentage of whatever income we make that month (our income varies slightly month to month). I’ve been setting my budget for each category by using the simple formula of, for ex. b=100. I’ve tried things such as b=h20/10 or b=h20*.1 and it won’t parse the formula. any suggestions to automate this?