Mathematical language isn't nicely understood by many people. People might mistakenly use "month-to-month average" when they actually want the 'average per month' but that doesn't change the meaning of those conditions, just as people creating about "stationery cars and trucks" does not change the meaning of "stationery" or "stationary". https://financefeeds.com/microstrategys-saylor-channels-steve-job/