A Percentages Trick

Just a quick postal service today to portion a non bad tip:

You tin swap the percent in addition to the amount:  16% of £25 is hard to calculate inward your head, only 25% of £16 is just the same amount.

So if you lot desire to rapidly live on out 16% of £25 without a calculator, uncovering 25% of £16 instead (ie split £16 past times 4). Simple!

Think nigh why this works.

Source: www.aperiodical.com

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