Elpain answer please
2007-04-02 17:40:49 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You put the final number (in this case 20) over your original number (25) and you get 80%
Since you end up with 80% of your original number, that's a 20% (100-80) decrease.
2007-04-02 17:47:17 · answer #1 · answered by hyungbinkim 3 · 0⤊ 0⤋
orignal value = 25
final value = 20
this means that there is a decrease of 5 (from 25 to 20);
the percent decrease in % = amount of decrease/original value then multiply by 100%, = (5/25) * 100% = 20%;
you must take note however that the increase from 20 to 25 is not the same or 20%, because the base is always the original value, hence, % increase = (5/20)*100% = 25%
to summarize,;
from 25 to 20 = 20% decrease
from 20 to 25 = 25% increase
2007-04-02 17:56:54 · answer #2 · answered by The Pretender 2 · 0⤊ 0⤋
If I understand what you are asking...
20 is 80% of 25, so you have a decrease of 20%.
2007-04-02 17:48:00 · answer #3 · answered by The Big Lebowski 3 · 0⤊ 0⤋
find the percent when the amount and base are known.
amount / base = percent
divide 20 by 25 to get the decimal
20 / 25 = 0.8
Multiply the decimal by 100 and attach the % symbol
0.8 x 100 = 80%
20 is 80% of 25
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Subtract 80 from 100
100 - 80 = 20
The amount of decrease is 20%
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2007-04-03 03:00:47 · answer #4 · answered by SAMUEL D 7 · 0⤊ 0⤋
The answer is 20%. 25-20=5
5 is what % of 25?
20
2007-04-02 17:48:45 · answer #5 · answered by Zoned Out Dude 2 · 0⤊ 0⤋
25 = 100% (÷ 25)
1 = 4% (x 20)
20 = 80%
100% - 80% = 20%
2007-04-02 17:47:48 · answer #6 · answered by Brenmore 5 · 0⤊ 0⤋
[ |25 - 20| *100% ]/ 25
5 / 25 = 20%
basically solve the difference between the numbers and divide by the initial number to solve for the percentage of the difference
2007-04-02 17:48:21 · answer #7 · answered by Kraca 3 · 0⤊ 0⤋