The table below shows the UK Consumer Prices Index (CPI) for October in three consecutive years.
| Period | UK Consumer Prices Index |
|---|---|
| October 2020 | 109.5 |
| October 2021 | 114.1 |
| October 2022 | 126.8 |
Calculate the percentage change in the UK Consumer Prices Index from October 2020 to October 2021. You are advised to show your working.