Yet another thing that somehow
people manage to constantly bungle
up in the English language
is the use of the phrase "X times
more". If you're someone who does this, stop
! There is an inherent
difference between the following:
This is three times faster.
This is three times as fast.
If newspeed = speed * 3, the speed
has increased to 300% of its old value
, which is a 200% increase (300% = 100% + 200%). This makes the speed three
times as much (by definition), which is two
: newspeed = 3 * speed = 1 * speed + 2 * speed.
The rule of thumb is:
If xn is t times the old value xo, it is (100 * t)% as much and t times as great, but it is (100 * (t - 1))% greater and t times greater.