What is the percentage increase between 18sqm and 30sqm?

38.896366%

That depends on the number of participants in 2005.
If you don't give the full problem then we can't give you an answer.

That depends on the number of participants in 2005.
If you don't give the full problem then we can't give you an answer. If, for example, 13,000 people commenced in 2005 then the percentage increase is 100%. If 130,000 people commenced in 2005 then the percentage increase is 10%.

That is an unsolveable question. You have to have a Non Zero Starting point in order to calculate a percentage of increase. Black is essentially 0. and no % increase of 0 will bring you anything but 0

3=100%
26=A (the A is the percentage of the this year)
so we make 26*100=3*A
2600=3A
A=2600/3=866.67 (is the percentage of the this year)
and to know the percentage increase (we remove the percentage of the last year (100%) from the percentage of the this year 866.67%
so we get 866.67-100=766.67
so your percentage increase is 766.67%
i wish it helps

There are two valid answers for this. The increase from 31% to 62% is 31%, for one answer. The other says it doubled from 31% to 62% so the increase is 100%.

Percentage change = (new value -old value)/old value * 100%
If result is positive it is an increase. If it is negative it is a decrease
Here
%increase=(500-5)/5*100=9900 %

Gross profit =total revenue -cost of doing business
Gross profit percentage = Gross profit/(Total revenue.)*100%
To increase the gross profit percentage, you decrease the cost of doing business.
Costs= all you have to spend to be able to do business (merchandises, employees' pay, rent of facilities, electric bills, etc.)

Your problem is that of percentage increase.

To calculate that, this is what you do:

Initial amount (Initial amount * percentage) = Percentage increase.

Let us call the initial amount, x.

Then our parameters are:
Initial amount = x
Percentage = 15/100
Final amount = 117300

So,
x (x * 15/100) = 117300
x (15x/100) = 117300
(x/1) (15x/100) = 117300
(100x 15x)/100 = 117300
115x/100 = 117300

cross multiplying
115x * 1 = 117300 * 100
115x = 11730000

dividing both sides by 115

115x/115 = 11730000/115
x = 102000.

So the original amount was $ 102000.

Hope that was helpful?
Have a wonderful day.

A percentage increase from a value a to a value b is defined as
Percent increase=(b-a)/a*100 percent.
In your case it is (200-70)/70=1.857. Multiply this number by 100 and append the percent symbol. Thus increase=185.7 percent or about 186 percent.