calculate percentage change from 2001-2003
in 2001 it was 206
in 2003 it was 173
2006-09-20 04:08:04 · 12 answers · asked by mitch 1 in Science & Mathematics ➔ Mathematics
206-173=33
% change=Amount of change/original value
=(33/206) *100=16%
2006-09-20 05:46:22 · answer #1 · answered by openpsychy 6 · 1⤊ 0⤋
When doing percentages I always find it better to calculate what 1% is first, and then if the question has more than one part to it, knowing what 1% is may help in all parts of the question.
100% here is 206 so 1% is 206/100 = 2.06
There is a decrease of 33 and 33/2.06 will give you the required percentage decrease. 33/2.06 = 16.019%.
Let's say there was a second part to this question, maybe what was 46% of 2001's takings or whatever they represent. You have already calculated 1% which is 2.06 so to get 46% it is 2.06 X 46 = 94.76.
2006-09-20 04:55:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
wot i call a roundabout method can be used to answer any % problem. Always start with 100% and this equals your starting number - in this case 206. We want 2 know wot 173 is so you set it out like so :
100% = 206
? = 173
All u have 2 remember is feed into your calculator the sequence which is - feed in the number above the question mark, divide by the number next to it and finally multiply by the number at the bottom. Out pops 83.98...
which means the answer is 16.01....
This method works for all different % questions so should be easy 2 remember.
2006-09-20 04:46:22 · answer #3 · answered by samthedog 3 · 0⤊ 0⤋
Percentage change
= [(206-173)/206] x 100%
= 16.2% (to 3 sig. fig)
Always divide the difference by the ORIGINAL value.
2006-09-20 07:06:19 · answer #4 · answered by Kemmy 6 · 0⤊ 0⤋
(173 - 206) /206 * 100 = -16 % decrease
Aloha
2006-09-20 04:09:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
206 * change = 173
change = 173 / 206 = 0.84
Percentage change is (change - 1) * 100 = -0.16 * 100 = -16%
A 16% decrease.
2006-09-20 04:13:47 · answer #6 · answered by helen g 3 · 0⤊ 0⤋
173/206 = 84% of what it was - so it's gone down by 16%.
2006-09-20 04:13:06 · answer #7 · answered by gvih2g2 5 · 0⤊ 0⤋
The difference is 33, this is 16.019417% of the original 206.
When asking questions like this, you need to be very careful with the wording, you could get several answers that are all correct, depending on your interpretation of the question.
2006-09-20 04:15:42 · answer #8 · answered by Phion 3 · 0⤊ 0⤋
The exact and precise answer is:
The percentage change is 16.01942%
This probably means that I am a very boring person! But I am right.
2006-09-20 05:37:43 · answer #9 · answered by Anonymous · 0⤊ 0⤋
may be 3 %
2006-09-20 04:09:54 · answer #10 · answered by george grohan mendal 3 · 0⤊ 0⤋