NO, it is NOT "simple". The OP already covered this. Some people have to be told twice.
1. "Of course this letter doesn't specify what these so-called "operational costs" are, nor offer any proof that they even exist. For all we know this rent increase might be nothing more than somebody (who we never see, don't know their name) wanting more money to buy something like this >>
2. If business owners cannot handle the costs associated with running their business, then stay out of that business. Don't be dumping costs on to the customers, especially for a commodity that people HAVE TO HAVE.
3. How do you expect the tenants to "cover" the cost of the increase ?
My increases in Social Security& VA pension for 2024 = $41/mo. The rent increase is $96/mo. That means I'm LOSING ground ($55/mo or $660/yr) LOSS.