I am wanting to create a column of summed authorized quanties by group no.
For example, what is the total authorized quantity for Group 13? For Group
14? Right now they are just listed individually, but I would like to sum
them by group in a new column. Please help. Thanks!

A B

GROUP AUTH QUANT.
13 13.50
14 135.00
14 407.00
14 946.29
25 18.00
194 1.07
194 33.80
200 192.73
200 107.41
200 202.55
200 613.78
200 613.78
370 39.99