One annoyance with the Mac app Alfred is by default it doesn’t support commas in numbers when trying to do calculations:
This has been an annoyance of mine for a long long time, but Benjamin Borowski on Twitter shared a hot tip on how to enable that and it’s pretty simple, you just have to find the right setting.
Alfred settings -> features -> calculator -> Input -> check “ignore thousands grouping separator”. Then you can use the thousands separator: