Answer:
the new amount after a 15% increase is £207.
Explanation:
To calculate a 15% increase on £180, you can use the formula:
\[ \text{Increase} = \text{Original Amount} \times \left( \frac{\text{Percentage Increase}}{100} \right) \]
In this case:
\[ \text{Increase} = £180 \times \left( \frac{15}{100} \right) \]
\[ \text{Increase} = £180 \times 0.15 \]
\[ \text{Increase} = £27 \]
So, a 15% increase on £180 is £27. Adding this increase to the original amount:
\[ £180 + £27 = £207 \]
Therefore, the new amount after a 15% increase is £207.