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how to find out the original number of a percentage. This video is really helpful and effective in finding the number when the percent is given the following steps are explained in the video to find the number when its percent is given. The percent rate new value and original value are the central figures in the percentage equation.
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In order to do this we. Multiplying the original number by this value will result in either an increase or decrease of the number by the given percent. In this example work out 212 106 200 212 106 200 The amount before the sales tax was added is 200.
Add or subtract a percentage from a number or solve the equations.
Divide the final amount by the decimal to find the original amount before the percentage was added. AQA GCSE maths revision practice paper 4. To calculate the percentage of a specific number you first convert the percentage number to a decimal. In this example work out 212 106 200 212 106 200 The amount before the sales tax was added is 200.
