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Program: PRCNTCHG (Percent Change)
PRCNTCHG
- Finds the percent increase or decrease, given a start value and an end value.
Useful for:
- SAT
- ACT
- Algebra 1
- Chemistry
Example
Q: An item that regularly sells for $50 is on sale for $42. By what percent is the item discounted?
Solution:
"Percent discount" is another way of saying "percent decrease".
Run PRCNTCHG (how?) and enter the following values, pressing ENTER after each one:
The program reports:
Interpretation: It is a 16 percent discount.
