IFERROR: what to show when a formula fails

A formula that divides by zero shows an error. IFERROR swaps the error for a value you choose, and it can hide more than you meant.

MediumPremium9 min
Task 1When a formula cannot give an answer2 questions

Some formulas cannot be worked out. Dividing by zero, or by an empty cell, is the most common case.

The cell then shows an error code that starts with a hash sign, such as #DIV/0! for a divide by zero. Any formula that uses that cell shows the error too.

Larkhill Stationery, average order value
ABCD
1RepSalesOrdersAverage order
2Asha1,260.008
3Ben0.000
4Carys930.006
Task 2IFERROR gives a fallback3 questions
Task 3What IFERROR hides3 questions