looking for math equasions to provide mark up on cost to make given % of profit?

Answer 1

The equation is cost/(1-x), where x is the percentage profit you want to make.

So, if you want to make 40% profit on an item that costs $1, then the equation is 1/(1-.4)= $1.67.

$0.67 profit on $1.67 selling price = 40% GP

Answer 2

I owned a business, and in order to keep it profitable you have to use your products in combination with a few certain rules: #1 60% should be your mark-up on your most popular, best-selling items. #2 You must have cheap items with virtually no mark-up that will bring customers into your business. #3. 5 to 15 % of your first 3 months profit should be towards ADVERTISING! This should build your customer base. Good luck! Rule of thumb: 90% of most businesses DO NOT make a profit in the first 5 years...