How to Work Out Percentages Quickly and Accurately

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To work out percentages quickly and accurately, start by remembering that a percentage is just a fraction out of 100. For 10% of any number, simply move the decimal one spot left. For 1%, move it two spots left. Then combine these for other percentages: 20% is double 10%, and 15% is 10% plus half of 10%. This mental math trick helps you calculate discounts, tips, or tax without a calculator. For precise figures, always double-check your steps and use a calculator for complex problems, but these…