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Program: PRCTCHG2 (Percent Change 2)
PRCTCHG2
- Finds the resulting number, when an initial value is increased or decreased by a certain percent.
Useful for:
- SAT
- ACT
- Algebra 1
Example
Q: An item that regularly sells for $50 is on sale for 30% off. What is the sale price?
Solution:
Run PRCTCHG2 (how?) and enter the following values, pressing ENTER after each one: (Note that the percent change is -30, not 30, because we want to decrease the price by 30%.)
Type 1 and press ENTER, since there is only one percent change in this problem.
The program reports:
Interpretation: The sale price is $35.
Note: If the problem requires more than one percent change, choose 2 in the previous screen and enter the next percent increase or decrease.
Try these problems using PRCTCHG2: 1
