[dassurma]

The difficulty is:

Do you express the resulting file size or the amount saved? “30%” could mean you “30% of the original file size” or “you shaved off 30% of the original file size”. You could denote the difference with a sign, like “-30%” but that still confuses people. We ran both options by a lot of our colleagues.

“x% of the original file size” is the least ambiguous, but who has the space to put that entire phrase in their app :-/

[alpaca128]

> You could denote the difference with a sign, like “-30%” but that still confuses people

How? This doesn't seem to be a problem whenever a shop runs a sale.

You could write "shrunk by/to x%". Or, to stay with the app's theme, "Squooshed by 30%!"

[iudqnolq]

> This doesn't seem to be a problem whenever a shop runs a sale.

Maybe because they don't mind people misinterpreting the sale as larger? I've never seen 30% off mean "30% of the original price", so if people misinterpret it will always be too small.

[developit]

my unhelpful take is that I like both