How to get difference of lastest value with now i have multiple values in latest column and only one value in now column i want output as difference
| latest | now |
1701973800.000000
1701455400.000000
1701455400.000000
1700418600.000000
1700418600.000000 | 1702372339 |
1701973800.000000- 1702372339 =
1701455400.000000- 1702372339=
like this
