Think-cell round is an add-in for Microsoft® Excel that ensures consistent rounding for all derived data in your Excel sheets. Using think-cell round, you can focus on the meaning of the data and forget about answering questions regarding miscalculated totals.
When data is compiled for a report or PowerPoint presentation, rounding
summations in Excel is a frequent problem. It is often desirable but difficult
to achieve, that rounded totals match the total of the rounded addends.