Number Abbrevation module provide field formatter and a twig filter to shorten
large numbers into abbreviations.

For example:

I have a number, e.g. 1000, 1230, 1500, 154000, 1500000, 1000000

And I want to format them with an abbreviation. i.e.

if it's a thousand, then 1k, 1.1k, 2k, 10k, 10.5k etc.

By enabling the module you will get a field formatter 'Abbrevate Number' for
`integer`, `decimal` and `float` field types.
You can also use a twig filter `abbrevate_number` for these fields field value.