A website is selling spools of ribbon for $0.62. The site got the spools of ribbon at a cost of $0.40. What percentage is the mark-up?
+1667 The site got the ribbons at $0.40, and sold them for $0.62.
The price went up by $0.22.
We can set up the equation like this:
x/100 = 0.62/0.40
The x/100 represents the percentage of 100, and the 0.62/0.40 represents the two prices, the new cost, or cost that the site is selling the spools for, over the original cost, the cost that the site got them for. The two are equal.
From here, you can solve 2 ways.
1.
You can simply divide 0.62/0.40, and the solution is 1.55. Then figure out what x needs to be for x/100 to equal 1.55.
2.
You can also multiply each numerator by the other denominator.
x * 0.4 = 0.4x
100 * 0.62 = 62
Now we have 0.4x = 62.
What does x have to be for 0.4 * x to equal 62?
Forgive me if I'm answering wrongly, do you mean what is the percentage of the difference of the prices ($0.22) from one of the prices ($0.62 or $0.40)?
A website is selling spools of ribbon for $0.62. The site got the spools of ribbon at a cost of $0.40. What percentage is the mark-up
.62/.40=1.55 - 1=.55 X 100=55% Percentage markup.
+1667 Whoops, I think I answered this incorrectly.
I think you are looking for the price that the store got the spools for ($0.40) over the difference ($0.22).
Our equation is
x/100 = 0.40/0.22
Refer to my first post if you are confused.
Way 1:
0.40/0.22= 1 81/99
What does x have to be for x/100 to equal 1 81/99?
I suggest rounding to the nearest hundredth. 
Way 2:
0.4 * 100 = 40
x * 0.22 = 0.22x
0.22x = 40
What does x have to be for 0.22 * x to equal 40?
Hope at least one of the answers I supplied helped.
P.S. I just realized that you're probably the one posting all of the questions about mark-ups and sales taxes.
Would you mind showing us where you need help with? Maybe show some work?
I'm just a bit concerned that you might be posting all of your homework here in order to finish it up quickly for tomorrow. 
