Percentage Change

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Bazal

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May 17, 2020
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Increase 6 by 20% and decrease your answer by 20%. What is the percentage change in 6?

I think the answer is 0%
 
What is 20% of 6? So what is 6 increased by 20%? (You could calculate that as 120% of 6). Now what is 6% of that number? Do you see that 20% of this new number is not the same as 20% of 6?
 
Hi
I'm new here. In which thread should I post this Question?
I'm stuck at start.
6.00 increased by 20% is 7.20
The increase is 1.20
I'm not sure what to do next
 
Bazal said:
Hi
I'm new here. In which thread should I post this Question?
I'm stuck at start.
6.00 increased by 20% is 7.20
The increase is 1.20
I'm not sure what to do next
Click to expand...
Now you want to decrease 7.20 by 20 percent. So what is 20 percent of 7.20?

-Dan
 
7.2 decreased by 20% = 5.76
now how do i calculate the last part of the Q which is calculate the percentage change in 6
 
Last edited:
Bazal said:
5.76:6*100 =
(5.76*100):6 =
576:6 = 96

is that it?
Click to expand...
Yes, that is what you were just asked to find (by Halls); but what you calculated has to be written as 96%, not just 96.

Bazal said:
this is percentage decrease right?
Click to expand...
No, it is the answer to the question, "what percent of 6 is 5.76?". That is not the same as "by what percent has 6 been decreased?"

To find the percent decrease from 6 to 5.76, you can either subtract and then find what percentage that difference is of 6; or just subtract 96% from 100%.
 
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