Question 92578
We have this:

A bracelet was marked up $175 from cost, which amounts to a 50% increase. Find the original cost of the bracelet. 
A) $365 B) $360 C) $360 D) $350

Why not set up a proportion?

new price/origin price = percent/100

Let x (or any letter of choice) = the orginal price.  Also, change 50% to a decimal which is .50.

We now have this proportion:

175.0/x = .50/100

Cross-multiply and then divide to find x.

Answer is D or $350.