Percent Change
1. Consider the water level change in Mosqueda reservoir.
- Initial amount: $840$ cubic meters
- Final amount: $798$ cubic meters
2. Calculate the difference in amount:
$$\text{Difference} = \text{Final} - \text{Initial} = 798 - 840 = -42$$
Since the difference is negative, it indicates a decrease.
3. Calculate the percent of change:
$$\text{Percent of Change} = \frac{\text{Difference}}{\text{Initial}} \times 100 = \frac{-42}{840} \times 100 = -5\%$$
So, the water level decreased by $5\%$.
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4. Consider Rj’s daily allowance change.
- Last year's allowance: $75$
- This year's allowance: $93$
5. Calculate the difference:
$$\text{Difference} = 93 - 75 = 18$$
Since the difference is positive, it indicates an increase.
6. Calculate the percent of change:
$$\text{Percent of Change} = \frac{18}{75} \times 100 = 24\%$$
So, Rj’s daily allowance increased by $24\%$.
Final Table:
| Situation | Increase or Decrease in amount? | Difference | Percent of Change |
|---|---|---|---|
| 1. Water Level | Decrease | $-42$ | $-5\%$ |
| 2. Allowance | Increase | $18$ | $24\%$ |