15 x 3 = 45, so it is an increase.
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No. From 30 to 45 is an increase of 50% . From 45 to 30 is a decrease of 331/3%.
That's a 46 and 2/3% increase.
Subtract the lower price from the higher one. Divide the difference by the original price. Multiply the answer by 100. Example: 15 dollars decreased to 12 dollars. 15 - 12 = 3 3/15 = 0.20 = 20 percent decrease Example: 12 dollars increased to 15 dollars. 15 - 12 = 3 3/12 = 0.25 = 25 percent increase
15-3 times 2 equals 15-6 equals 9.
3 times 5 = 15