With reference to the data below, calculate the value of government grants as a percentage of total Welsh dairy farm revenue for 2021 and 2022. You are advised to show your working.
| Year | Total revenue from dairy farming (£ millions) | Government grants to dairy farmers (£ millions) |
|---|---|---|
| 2021 | 640 | 384 |
| 2022 | 750 | 412.5 |
