What was a major accomplishment you had at your previous employer?

When answering this question think about specific accomplishments and ways you improved the accounting/accounts payable department, whether you increased productivity, reduced error or successfully implemented a new system. It is important to provide specifics if you have them available, for example, "I redesigned the accounts payable system, which led to and 50% increase in the efficiency of our system" or "I processed over 3000 check requests in less than three weeks which totaled 90,000 in accounts payable."