Answer:
-21.4286% increase
or
= 21.4286% decrease
Step-by-step explanation:
How to Calculate Percentage Increase
Subtract final value minus starting value
Divide that amount by the absolute value of the starting value
Multiply by 100 to get a percent increase
If the percentage is negative, it means there was a decrease and not an increase.
Percentage Increase Formula
You can use the percentage increase formula for any percent increase calculation:
Percentage Increase=Final Value−Starting Value|Starting Value|×100
Example Problem: Percentage Increase
Last year your favorite jeans cost $36 per pair. This year they cost $45 per pair. What is the percentage increase in the price of these jeans from last year to this year?
Percentage Increase = [ (Final Value - Starting Value) / |Starting Value| ] × 100
45 - 36 = 9
9 / 36 = 0.25
0.25 × 100 = 25%
So the price of your favorite jeans increased by 25% from last year to this year.
