Attachment:
screenshot 2013-09-03 um 23.57.23.png

Maybe we could just display it as 22,990,872 (or 22.990.872 for German)?

it would be awesome if we managed to run all numbers being output in Piwik. For example we could have a prettyNumeric() method which may use localeconv() function to get thousands+decimal separator for current selected language, and then use number_format() to build the string.

function number_format_locale($number,$decimals=2) {
    $locale = localeconv();
    return number_format($number,$decimals,
               $locale['decimal_point'],
               $locale['thousands_sep']);
 }

we could then apply this prettyNumeric() filter to all numbers found in the output of some key twig templates where applying this prettify makes sense.

prettyNumeric() could also contain logic to abbreviate large numbers eg. 12.5M instead of 12,500,000

for nice looking numbers especially in columns see also: #4789

FYI: Number formatting is finally implemented in Piwik in #8857 ❤️

Can we close this, or are there stills tasks open for improving number formats?

Well done Stefan!