With reference to Figure 1, calculate the percentage change in the value of the Euro (€) in British Pounds (£) from the start of 2015 to the start of 2020.
Figure 1: Exchange rate of the Euro (€) to the British Pound (£), 2014–2022

| Year | Price of one Euro (€) in British Pounds (£) (approx. start of year) |
|---|---|
| 2014 | 0.82 |
| 2015 | 0.75 |
| 2016 | 0.78 |
| 2017 | 0.84 |
| 2018 | 0.88 |
| 2019 | 0.89 |
| 2020 | 0.90 |
| 2021 | 0.86 |
| 2022 | 0.85 |