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Percent of decreaseJust like the name suggests, the percent of decrease is the amount of decrease out of one hundred. Thus, the formula to use is : Amount of decrease / Original amount I will illustrate what I just said with examples. Example #1: Find the percent of decrease from 6 to 4. Amount of decrease is 6 − 4 = 2 Original amount is 6 2 / 6 = 0.3333 multiply 0.3333 by one hundred to get the answer as a percent. 0.3333 × 100 = 33.33, so the answer is 33.33%. Example #2: Find the amount of decrease per hundred from 10 to 5. Amount of decrease is 10 − 5 = 5 Original amount is 10 5 / 10 = 0.50 multiply 0.50 by one hundred to get the answer as a percent 0.50 × 100 = 50, so the answer is 50%. Example #3 Find the amount of increase per hundred from -4 to -8. Amount of decrease is -4 − -8 = -4 + 8 = 4 Original amount is -4 4 / -4 = -1 multiply -1 by one hundred to get the answer as a percent -1 × 100 = -100, so the answer is -100%. Need a Quick Answer to your Basic Mathematics Problems? Get an answer in 10 minutes or less from a math expert! Justanswer features top-notch math experts handpicked by personnel after they have taken and passed a rigourous math test and after their credentials have been verified by a third party
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