When we reviewed our sales numbers, we learned that we did not meet all our goals ____our hard work. We learned,____ that customers dont seem to enjoy our product.

Question

on account of, despite likewise, although, furthermore.

Answer 1

When we reviewed our sales numbers, we learned that we did not meet all our goals despite our hard work. We learned, furthermore, that customers don't seem to enjoy our product.

This combination effectively conveys that despite the effort put in, there was still a shortfall in achieving goals, and also adds additional information about customer sentiment.