Simple Maths Question

[MarillionFan]

Trying to represent the improvement on something an email to the business. We have a number of reports that used to generate in 45 seconds, that's now been improved to just 5 seconds.

The first person said the improvement was 80%
His boss changed it to show it as an improvement of 8x because it looks better.
While I calculate it's a decrease of 88.9% (which I could call an 'improvement'). If I was to do a times improvement though, I would say it was roughly a 4x times improvement (4.125) improvement.

What is the nX times improvement?

[vwdan]

Isn't it a 9x times improvement. 45 seconds being 9x slower than 5s?

[TheLordDave]

900% improvement

[stek]

Simple Maths Question

900% improvement

+1

Is it one of those Facebook tests?

[pr1]

45/5

[BrilloPad]

If you could get them sent in 5 seconds I bet most here could do it in 0.5 seconds.

[VectraMan]

Isn't it a 9x times improvement. 45 seconds being 9x slower than 5s?

The improvement is only 40 seconds, not 45.

Then again, a two times improvement to most people would mean double what it was before, even though it's only a one times improvement.

[vwdan]

The improvement is only 40 seconds, not 45.

Then again, a two times improvement to most people would mean double what it was before, even though it's only a one times improvement.

Uh....a one times improvement would be no improvement because, y'know, maths

If you have one banana and I double your lot (a 2x improvement) then you'll have two bananas.

[VectraMan]

Uh....a one times improvement would be no improvement because, y'know, maths

If you have one banana and I double your lot (a 2x improvement) then you'll have two bananas.

No, the improvement, i.e. the increase is 1 banana. Therefore it's a 1x improvement. 1+ 1 = 2 and all that. A 2x improvement would mean I now have three bananas.

It's amazing the human race has achieved anything with this to contend with.

[pr1]

Uh....a one times improvement would be no improvement because, y'know, maths

If you have one banana and I double your lot (a 2x improvement) then you'll have two bananas.

"5% improvement" = *1.05
"100% improvement" = *2.00
"200% (2x) improvement" = *3.00