How the dragons use maths in the den
When entrepreneurs in the Dragon’s den ask for say £100,000 in return for 5% of their businesses, the dragons would have to do a quick mental maths calculation to work out how much the business is being valued at. In simple 11+ maths style, the question would be:
If 5% of a number is £100,000, how much is the number? A quick solution is to divide 100 by the percentage and multiply the number by this answer. So in this case 100/5 = 20, so the entrepreneur thinks his business is worth 20 x £100,000 or £2,000,000.
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Tags: dragon's den maths