2007-04-16 22:35:42 · 4 answers · asked by elmoinscotland 1 in Science & Mathematics ➔ Mathematics
The percentage change in going from a to b is (b-a)*100 / a.
The direction is important.
Going from 45 to 34, the percentage change is (34 - 45)*100/45 = -24.44%. This is negative because the change is a reduction.
Going from 34 to 45, the percentage change is (45 - 34)*100 / 34 = 32.35%. This is positive because the change is an increase.
2007-04-16 22:42:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Divide one by the other and multiply by 100.
There are 2 possible answers.
34/45 x 100 = 75.55% (because 34 is smaller than 45)
This means the change is 100 - 75.55 = 24.45 decrease
45/34 x 100 = 132.35% (because 45 is bigger than 34)
This means the change is 32.35% increase
The answer will depend on how the question is asked.
Hope this helps.
2007-04-17 05:47:01 · answer #2 · answered by Steve 2 · 0⤊ 0⤋
34/100=0.34
0.34*45=15%
2007-04-17 07:31:47 · answer #3 · answered by pauline l 2 · 0⤊ 1⤋
a/34 - a/45 = (45 - 34)a/(34*45)
a/34 - b/45 = (45a - 34b)/(34*45)
(45 - 34)/34 =
(34 - 45)/34 =
(45 - 34)/45 =
(34 - 45)/45 =
34/45 =
45/34 =
Which are you trying to find?
2007-04-17 06:05:22 · answer #4 · answered by Helmut 7 · 0⤊ 0⤋