Answer:
"The proceeds will support our - yes, one hundred percent of the proceeds will support our - efforts to protect endangered species"
Step-by-step explanation:
The dash is used to show a change in focus, structure or to indicate a short digression within a sentence.
In this particular sentence it is used to do exactly that as the speaker digressed a bit from his statement and later came back on track, so the dash is used to show where he digressed.