Thank you for the link to the spreadsheet. Exact numbers they show are:

- "120% less memory usage" - From 9.9 Mb to 4.5 Mb

- "Up to 133% faster updates" - 13.18 (ms?) to 5.64

In both cases, the formula to calculate the percentage is:

  = ( PREVIOUS - CURRENT ) / CURRENT

Oh, actually they just changed it. For the memory usage, it's now:

  = ( PREVIOUS - CURRENT ) / PREVIOUS

..which shows a more intuitive result: -54.55%.

Is this the lingo that statisticians/mathematicians use?

I’d just say 75% drop for 100mb to 25mb.

No, it’s plain wrong. You could say «vue 2 uses 120% more memory than vue3», but vice versa is thus a different percentage (yes, 75%).

No, I think it's just weird :)

you would say "use 1/4th as much memory" if you were a normal person.

This kind of arithmetic is always very unclear and causes all kinds of confusion / miscommunication. This is why I always prefer to be explicit about the absolute numbers (maybe in addition to the relative percentages): "it used 100 mb and now it uses 25 mb (which is a 300% reduction when looking at the final result / which is a 75% reduction based on the initial result)".

Yeah.

25 to 100 would be a 300% increase.

100 to 25 would be a 75% reduction.

The only people I've seen use such nonsense were marketing departments. Do they think people can't do basic fractions any more?

Thanks for the link. Someone just started fixing the spreadsheet right now!

These "75%"/"300%" numbers are ridiculous, the two numbers are calculated completely differently. At least be consistent.

100/25-1 = +3 = 300% increase

25/100-1 = -0.92 = 92% decrease

i think your math is wrong, bud.

100/25-1 = 3 (300% increase)

25/100-1 = -0.75 (75% decrease).

Correct. :)

Source: https://www.google.com/search?q=25%2F100-1

Yes I made a dumb. oops.