Percent Change Formula
Percent change calculates the percent increase or decrease. If the number is positive, it is a percent increase. If the number is negative, the percent change is a percent decrease.
Example 1:
A theater's ticket sales increased from 4,250 to 5,621 tickets sold from one weekend to the next. What is the percent change?
Step 1:
Determine which is the original number and which is the new number.
Original: 4,250
New: 5,621
Step 2:
Substitute and simplify.
Step 3:
Divide and convert to a percent (multiply by 100)
increase since it is positive.
Answer:
The number of tickets sold increased by 32%.
Example 2:
At this same theater, a movie's ticket sales on opening weekend were $30,850. The following weekend's
sales were $22,360. What was the percent change?
Step 1:
Determine original and new numbers.
Original: 30,850
New: 22,360
Step 2:
Substitute and simplify.
Step 3:
decrease since it is negative
Answer:
The movie experienced a 28% decrease in ticket sales.
Related Links: |