Alright! Let's break this problem down step by step to find out how to decrease £220 by 15%.
1. First Step: Calculate the Decrease Amount
We need to find what 15% of £220 is. Remember that to find a percentage of a number, you can multiply the number by the percentage (expressed as a decimal).
[tex]\[
\text{Decrease Amount} = \left(\frac{15}{100}\right) \times 220
\][/tex]
Evaluating this:
[tex]\[
\text{Decrease Amount} = 0.15 \times 220 = 33.0
\][/tex]
Therefore, the amount of decrease is £33.0.
2. Second Step: Subtract the Decrease Amount From the Initial Amount
Now, we subtract the decrease amount from the initial amount to find the new amount.
[tex]\[
\text{New Amount} = 220 - 33.0
\][/tex]
Evaluating this:
[tex]\[
\text{New Amount} = 187.0
\][/tex]
Thus, the new amount after decreasing £220 by 15% is £187.0.
Summary:
- The decrease amount is £33.0.
- The new amount is £187.0.
