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Comment by akerr | Hacker News Reader

Would save 3% too.

$ echo "How Image Optimimization decreased my website's page weight by 62%" | wc -m

$ echo "How Image Optimization decreased my website's page weight by 62%" | wc -m

$ echo "scale=3; (67-65)/67" | bc

.029

Math checks out, sir.

bc; A new utility I did not know about, thanks! #themoreyouknow

But:

    $ echo "" | wc -m
    1

You probably want to add the -n flag to echo. It doesn't change the validity of the statement though.