Given: selling price = $147 mark up = 75% Asked: original cost The solution: Selling price is the sum of the original cost and mark up price. It could be written as following, Original cost + mark up price = selling price 100% original cost + 75% original = selling price 175% original cost = selling price 1.75 original cost = selling price
Solve for original cost original cost = selling price/1.75
Plug in the numbers original cost = selling price/1.75 original cost = 147/1.75 original cost = 84
