Try it
Add the skill to a bot, then ask your Chief of Staff:
“Use the Macro Calculation skill on this: [describe the job, or paste your notes].”
The Mifflin-St Jeor equation is the most validated for non-athletic populations and outperforms the older Harris-Benedict equation in accuracy studies. The Katch-McArdle equation (BMR = 370 + 21.6 x lean body mass in kg) is superior when you know their body fat percentage -- use it when that data is available.