Percent slower/faster?

[Rangers]

Okay in benchmarks a lot, you get the term, cardx is 10% faster/slower than card y.

I remember Anand posting a review a few months ago, which I dont remember which one, but he corrected the review to say, I believe, percent slower was a meaningless statement. Only percent faster was valid.

Ever since then I've been confused about it. Is percent slower a valid term?

I can see if you make card x speed=100%, and card y speed is 110% relative to card x, you can say card y is 10% faster correct?

If card y is 90% of card x, can you say cardy y is 10% slower than card x? Is that valid?

 

[K.I.L.E.R]

Vectors: u, v
Assume u is opposite direction of v, both have the same mag.

v = -u

or

u = -v

?

 

[zed]

percent slower is a valid term but i suppose in reviews u can use the increase or decrease method to put forward a more favourable case for a card (like i show below)

though K.I.L.E.R's reasoning above is false, as can easily be seen

100 increased by 10% = 110
110 decreased by 10% = 99 (not 100)

 

[K.I.L.E.R]

Seems more like market-speak.
What's the real difference between 100 and 99? 1.
Who would pay attention to something like that?
If they are quoting in percentages, as Zed has mentioned than it would be quite misleading.

edit: OMG!!! THE GUY'S NAME ABOVE ME IS ZED.

 

[Blazkowicz]

10% faster and 10% slower are close, but think about 50% faster and 50% slower..