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The word per cent means per 100. to calculate a percent of a total divide the number you were given by the total and then multiply by

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carlosego
The first thing you must do to solve the problem is the following rule of three:the total ----> 100
 the number you were given ----> x
 Clearing x we have:
 x = ((the number you were given) / (the total)) * (100)
 Therefore, you must multiply by 100.
 answer:
 divide the number you were given by the total and then multiply by 100

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