# Math Help - percentage profit?

1. ## percentage profit?

I was just wondering if someone can tell me how to work this out,

if I bought some item for £4,400 and sold it for £5,100 what is my percentage profit?

I know that I have made a profit of £700 but in terms or percentages?

I did try this; $\frac{100}{700} = 0.1429$ than multiply by 100 to get 14.286%, but than 14.286% of 4,400 does not give me 5,100.

any help/ advice appreciated.

thanks

2. Originally Posted by Tweety
I was just wondering if someone can tell me how to work this out,

if I bought some item for £4,400 and sold it for £5,100 what is my percentage profit?

I know that I have made a profit of £700 but in terms or percentages?

I did try this; $\frac{100}{700} = 0.1429$ than multiply by 100 to get 14.286%, but than 14.286% of 4,400 does not give me 5,100.

any help/ advice appreciated.

thanks
If you want your profit, £700, as percentage of your cost, £4,400, which is what it appears to be, then it is [tex]\frac{700}{4400}= 0.159[tex] or 15.9 %. Now multiplying 4,400 by that will NOT give you 5,100- it's not supposed to- it will give your profit: 700. Multiplying 4,400 by 1+ 15.9%= 1.159 will give your cost plus profit= selling price:
1.159(4,400)= 5099.6 (not exactly 5100 because 15.9% is rounded.)