To determine a percentage decrease, ascertain the actual decrease, then divide this by the base number and multiply the result by 100.
Decrease = a - b
The base number (the number on which the decrease is based) = a
Therefore, the percentage decrease = 100 x (a - b)/a %
EXAMPLE : What is the percentage decrease of 15 to 11.
Decrease = 15 - 11 = 4 : Base number = 15
Percentage decrease = 100 x 4/15 = 262/3 or 26.67%
12.5% decrease.
9.5238% decrease.
the amount of decrease in a percent
20 percent decrease.
20% decrease.
148 to 121 is a percent decrease of 18.24%
The percent decrease from 14 to 9 is 35.71.
This is a decrease of 20%
Percent Decrease = (Original Amount - New Amount)/(Original Amount) * 100% The percent decrease from 220 to 33 is 85%
The percent in the decrease of 25 to 20 = 20%
You can decrease a number by 10 percent by multiplying it by 0.9
Both are correct, depending on the context. If decrease is a noun then decrease of is correct. eg This year we have seen a decrease of 20 percent. If decrease is a verb then decrease by 20 percent is correct. eg This year we can decrease the price by 20 percent.