Given how scientific Bill Amend usually is, these percentages don't ring true.

https://www.gocomics.com/foxtrot/2022/02/27

I mean, according to one source, at least, the gross median salary for a high school math teacher is about $50,000, which comes to $4,166 per month. (Taxes get mentioned in the strip.)

So that would mean her food expenses are...$595 per month.

Excuse me?!

Seems to me the only way that would happen is if you do all your shopping at Whole Foods - and/or allow food to waste. Or, you might shop at a cheap place - and then blow a pile on restaurants. (There's no suggestion she has kids to feed.)
And her heat and utilities would be: $520 a month.

Again, that smells of extravagance of one kind or another.

I admit that I don't have student loans to pay, but I checked my income and expenses for the first 17 months of the pandemic, which had cut greatly into my income.

Bottom line: my rent took more than half my NET income, but my food bill was 1/15 of my net income...and I had a full 30% of my net income left after all my utilities, transportation, health, food and rent had been paid for.