percent of change percents show the formula?

% change = {(final no. - initial no.) / initial no.} X 100
If this no. is +ve then, the change is increase and -ve then it is decrease.

{(21 - 24)/24} x 100 = -12.5 = 12.5 % decrease (- sign means decrease)
{(80 - 64)/64} x 100 = 25 = 25 % increase (+ sign means increase)
{(113 - 100)/100} x 100 = 13 % increase
{(41 - 50)/50} x 100 = 18 % decrease
{(105 - 63)/63} x 100 = 66.67 % increase
{(168 - 42)/42} x 100 = 300 % increase
{(24 - 80)/80} x 100 = 70 % increase
{(158 - 200)/200} x 100 = 21 % decrease

you should do your own homework :P
all the best

For Percentage changes (Works for Increases and Decreases)

Let Start Number = S
Let End Number = E
For increase subtract Start No. from End No.
For decrease subtract End No. from Start No.

So in your 1st example:-

[{E - S} / S] x 100

[(24 - 21)/ 24] x 100
= 12.5%

2)
[{E - S} / S] x 100
[{80 - 64} / 80] x 100
= 20%

And so on !!!
Hope this helps :-)

Here's how to find the percentage of change.

Example: 200 to 158.
What's the start value? 200.
What's the finish value? 158.
The actual change from start to finish: 158-200 = -42.
The PERCENTAGE change: Divide actual change by 200. Why 200? Because it's the starting value. It's the basis of comparison. (think Basis...base...denominator...divide by ...)
So the percentage change is -42/200 = -21/100 = 21%

1.
24-21/24 x 100%
= 3/24 x 100%
= 1/8 x 100%
= 100/8 %
= 12.5%

2.
80-64/64 x 100%
= 16/64 x 100%
= 1/4 x 100%
= 100/4 %
= 25%

3.
113-100/100 x 100%
= 13/100 x 100%
= 13000/100 %
= 13%

4.
50-41/50 x 100%
= 9/50 x 100%
= 900/50 %
= 18%

5.
105-63/63 x 100%
= 42/63 x 100%
= 2/3 x 100%
= 200/3 %
= 66 2/3 %

6.
168-42/42 x 100%
= 126/42 x 100%
= 3 x 100%
= 300%

7.
80-24/80 x 100%
= 56/80 x 100%
= 7/10 x 100%
= 700/10 %
= 70%

8.
200-158/200 x 100%
= 42/200 x 100%
= 4200/200 %
= 21%

Hello there,

The formula would be :

Percent Change = (Second Number/First Number) x 100%

So I will do the first three examples for you:

1. 24 to 21

Percent Change = 21/24 x 100%

= 0.875 x 100%

= 87.5%

2. 64 to 80

Percent Change = 80/64 x 100%

= 125%


3. 100 to 113

Percent Change = 113/100 x 100%

= 113%

Hope this helps. Write back for more help.