Earlier quoted context omitted.
> Say $2MM in tickets are sold what do you think about the format: [scalar] [si-prefix] [unit]
Honestly, I prefer it. But for one reason or another, MM is the accepted suffix when dealing with money (it comes from mille in latin meaning thousand, not million.)
any idea how it came to prominence?
i guess i has something to do with distancing the field from natural sciences.