I have in data multiple calculation per day and in each day there is also value that is sum of all. How can i calculate this percentage value like in this table:
+------------+----------+-------+------------------------------------------------+
| date | name | value | percentage |
+------------+----------+-------+------------------------------------------------+
| 01-01-2023 | name1 | 1 | name1 value / specific value in that day *100% |
| 01-01-2023 | name2 | 2 | name2 value / specific value in that day *100% |
| 01-01-2023 | name3 | 3 | name3 value / specific value in that day *100% |
| 01-01-2023 | specific | 120 | specific/specific *100% |
| 02-01-2023 | name1 | 2 | name1 value / specific value in that day *100% |
| 02-01-2023 | name2 | 2 | name2 value / specific value in that day *100% |
| 02-01-2023 | name3 | 2 | name3 value / specific value in that day *100% |
| 02-01-2023 | specific | 300 | specific/ specific *100% |
+------------+----------+-------+------------------------------------------------+
My problem is how to select name row with value ‘specific’ for each day.