# SOLUTION: How do I manually work out the percentage of something : eg. 18 students out of 25 is 72% - how do I work this out without using a calculator. Thank you kindly, Susan

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 Click here to see ALL problems on percentage Question 275012: How do I manually work out the percentage of something : eg. 18 students out of 25 is 72% - how do I work this out without using a calculator. Thank you kindly, SusanFound 2 solutions by ankor@dixie-net.com, Alan3354:Answer by ankor@dixie-net.com(15649)   (Show Source): You can put this solution on YOUR website!How do I manually work out the percentage of something : eg. 18 students out of 25 is 72% - how do I work this out without using a calculator. Thank you kindly, Susan : Use old fashioned long division would be : ____.72 * 100 to get the per cent 25|18.00 Answer by Alan3354(30993)   (Show Source): You can put this solution on YOUR website!18/25 = p/100 Multiply NUM and DEN by 4 72/100 = p/100 p = 72 --> 72%