I need a function that will add data in a column based on criteria in another column and then output it in the last cell in a 3rd column that meets the criteria. For example:
ID number blank column
1 25
1 15
1 45
1 50 SUM of all 1s HERE
2 10
2 15
2 10 SUM of all 2s HERE
3 5
3 6 SUM of all 3s HERE
ID number blank column
1 25
1 15
1 45
1 50 SUM of all 1s HERE
2 10
2 15
2 10 SUM of all 2s HERE
3 5
3 6 SUM of all 3s HERE