updating logic for text label

and I am trying to update the logic for the text label. Currently it displays Source (1), but I want it to just show Source not the (1) next to it, but when some clicks on the + Add Another Then the Label for the first SOW field shall show "(1)" next to the "Source" label. And the Label for the second SOW field shall show "(2)" next to the "Source" label And the Label for the Third SOW field shall show "(3)" next to the "Source" label and so on (max total five allowed).

Also When The user on the "Finances" screen clicks on the "-Remove" link And removes all the SOW's except the first SOW Then the Label for the first SOW field shall not show "(1)" next to the "Source" label.

How would I achieve this? This is the code I have so far,