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You are confusing MARK-UP and MARGIN. I hope you realise that not knowing the fundamental math of business is not a good omen for success...% MARGIN = 100 x (PROFIT/SALE PRICE) and PROFIT = SALE PRICE - COST PRICE.Nobody in serious business uses markup.
@Belassi I got lost, would you mind elaborating on how you got to the 83% figure?6 times cost = 600%substracting the 100% cost gives 500% profit, wholly different than 83%