Your are viewing a read-only archive of the old DiS boards. Please hit the Community button above to engage with the DiS !
if your target for something is a 2% success rate, and you end up with a 1% success rate, have you failed by 1% or 50%?
you're not getting a bonus.
You didn't achieve your target, therefore failed by 100%.
A 99% fail rate is just called a disaster.
actual success rate divided by target success rate x 100 (which yeah is 50%)
You can probably validly use either as long as you make it clear where the percentage in question comes from.
In this case "failed by 1%" is probably gonna be more easily understood.
Using percentages of percentages (i.e. 50% of 2%) is to operate withing the realm of spin merchants.
Political polls say that "party X is on 45%, representing a fall of 3%" if they used to be on 48%. They don't quote what 3% of 45% or 48% is, unless explicitly stating what they're doing.
he failed by 50%
he failed by 50% of the target
people automatically think of it in terms of 100 being the maximum, so saying he missed the target by 1 people will think one out of 100, not bad. So think he should just use the raw figures, say missed the target by x amount and only use the word percentage, when 100% is meaningful. In the example of a poll of partys, the 100% is still meaningful as all the options will add up to 100, when comparing something against itself I think it is different and percentage difference makes more intuative sense
that was his question, no? and anyway you've cheated by claiming 2 answers.
Frankly, the difference between quoting a figure of 1 or 2%, or 50% is so stark as to require considering an alternate form of reporting to just percentages. Otherwise, the reporting of the issue is likely to come across as spin.
See also: Postal Delivery or Train Time punctuality. They aim for 90-odd% levels of service. No-one says they've failed to meet targets by 50% if they drop to 98% from 99% punctuality.
the difference between 99 and 98 (1) divided by the original figure (99) times 100, so a percentage change of 1.01.
But yeah I see what you mean, but think in that example 100% still has more meaning than when a target is 2%
but i re-read my boss's e-mail and apparently i'm supposed to do percentage points