aliciampeal aliciampeal
  • 13-02-2016
  • Mathematics
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to decrease an amount by 19% multiply by

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Аноним Аноним
  • 13-02-2016
Think of the original amount as 100%
If we want 100% of something we multiply by 1
To get from 100% to 1, we divide the percentage by 100
Decrease 100% by 19%
100% - 19% = 81%
Then to get the multiplier, divide by 100
81% / 100 = 0.81
To decrease by 19%, multiply by 0.81
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