I have a big dataframe (the following is an example)

| country | value |
| --- | --- |
| portugal | 86 |
| germany | 20 |
| belgium | 21 |
| Uk | 81 |
| portugal | 77 |
| UK | 87 |

I want to subtract values by 60 whenever the country is portugal or UK, the dataframe should look like (Python)

| country | value |
| --- | --- |
| portugal | 26 |
| germany | 20 |
| belgium | 21 |
| Uk | 21 |
| portugal | 17 |
| UK | 27 |