Hugh Duffy holds the highest recorded single-season batting average at 0.440. Over his ten year career, his batting average was 0.324. What is the percent of increase of his best season over his career average?

Question

anonymous · Answer

@Hero

anonymous · Answer

@dockworker

anonymous · Answer

@brainshot3

anonymous · Answer

lets call x1 the original value and x2 the new value
the formula to find percent change is:
$$\frac{x_{2}-x_{1}}{x_{1}}*100$$

hero · Answer

$$\frac{|.440 - .324|}{.440} \times 100 = \frac{.116}{.440} \times 100 = 26.36$$

hero · Answer

Dockworker I posted the formula in previous sections

hero · Answer

sorry, you weren't there

anonymous · Answer

actually for percent increase, you would use absolute value as hero did.  i didn't see that part

anonymous · Answer

oh, someone just looking for answers?

hero · Answer

I wasn't saying that. I'm not really sure. I think the person wants to understand it. Might be checking answers. You never know.

anonymous · Answer

Um.... I am kinda lost....

hero · Answer

I can imagine

anonymous · Answer

just remember if they want the percent increase or decrease, its always positive, if they want percent change, answer can be positive or negative

anonymous · Answer

well, always positive assuming it actually increases or decreases as they ask

anonymous · Answer

nevermind, probably more confusing now

hero · Answer

If they say find percent change, then you have to figure out for yourself if the change is an increase or decrease.

However, if they say percent increase or decrease, then you don't have to worry about confusing yourself.

anonymous · Answer

yes, that's a better way to put it.

anonymous · Answer

so... how do i figure it out