In January, a puppy weighed 4kg. Three months later, the same puppy weighed 5kg. What was
the percentage increase in the puppy’s weight?


To find the percentage increase in the puppy's weight, follow these steps:

1. **Initial weight in January:** 4 kg
2. **Final weight after three months:** 5 kg

### Formula for percentage increase:
\[
\text{Percentage Increase} = \left( \frac{\text{Final Weight} - \text{Initial Weight}}{\text{Initial Weight}} \right) \times 100
\]

### Applying the values:
\[
\text{Percentage Increase} = \left( \frac{5 - 4}{4} \right) \times 100 = \left( \frac{1}{4} \right) \times 100 = 25\%
\]

So, the percentage increase in the puppy's weight is **25%**.

Would you like more details or have any questions?

Here are 5 related questions:
1. How do you calculate percentage decrease?
2. What is the percentage change if the final weight was 6 kg?
3. How would the percentage increase change if the initial weight was 3 kg instead?
4. Can you apply this percentage increase formula to prices and sales?
5. How do you calculate percentage increases in multiple stages (e.g., over different months)?

**Tip:** Always subtract the initial value from the final value before dividing by the initial value when calculating percentage increases.

In January, a puppy weighed 4kg. Three months later, the same puppy weighed 5kg. What was the percentage increase in the puppy’s weight?

Discover how to calculate the percentage increase in a puppy’s weight from 4kg to 5kg over three months. This step-by-step solution covers key arithmetic concepts such as percentage change, suitable for students in Grades 5-7.

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