This is the gross margin. It leaves out rent, wages, tax and other overheads, which reduce what you actually keep. Selling prices may include or exclude SST, so use the price before tax.
Frequently asked questions
What is profit margin?
Profit margin is profit as a percentage of the selling price. It shows how many sen of every ringgit of sales you keep as profit.
What is the difference between margin and markup?
Margin is profit divided by the selling price. Markup is profit divided by the cost. Cost RM80 and price RM100 gives a 20% margin and a 25% markup.
Does the cost include everything?
Only what you enter. Include delivery, packaging and fees if you want the true profit, and remember overheads such as rent are not included.