It looks like you've uploaded an image containing a worksheet titled
"Percentage Increase & Decrease" with several tables. The task involves calculating either the
new amount after a percentage increase or decrease, given the original amount and the percentage change.
Since I can't view images directly, I'll help you solve this type of problem based on the typical structure of such worksheets.
Let’s assume the tables look something like this:
---
Percentage Increase
| Original Amount | % Increase | New Amount |
|------------------|------------|-------------|
| 100 | 20% | ? |
| 50 | 30% | ? |
Percentage Decrease
| Original Amount | % Decrease | New Amount |
|------------------|------------|-------------|
| 80 | 10% | ? |
| 120 | 25% | ? |
---
✔ How to Solve
#### 🔹
For Percentage Increase:
Use the formula:
\[
\text{New Amount} = \text{Original Amount} + (\text{Original Amount} \times \frac{\% \text{Increase}}{100})
\]
Or more simply:
\[
\text{New Amount} = \text{Original Amount} \times (1 + \frac{\%}{100})
\]
#### 🔹
For Percentage Decrease:
Use the formula:
\[
\text{New Amount} = \text{Original Amount} - (\text{Original Amount} \times \frac{\% \text{Decrease}}{100})
\]
Or:
\[
\text{New Amount} = \text{Original Amount} \times (1 - \frac{\%}{100})
\]
---
🧮 Example Calculations
####
Example 1: Increase
- Original: 100
- % Increase: 20%
\[
\text{New Amount} = 100 \times (1 + 0.20) = 100 \times 1.20 = 120
\]
####
Example 2: Decrease
- Original: 80
- % Decrease: 10%
\[
\text{New Amount} = 80 \times (1 - 0.10) = 80 \times 0.90 = 72
\]
---
Now, if you provide the specific values from your table (e.g., list the original amounts and percentages), I can calculate the
new amounts for each row and explain step-by-step.
Alternatively, if you describe the exact numbers in the tables (or copy-paste them), I’ll fill in all the blanks for you.
Just let me know!
Parent Tip: Review the logic above to help your child master the concept of percent increase or decrease worksheet.
