Error Rate
How often people make a mistake, per opportunity for an error.
Error rate = errors ÷ opportunities × 100
Why it matters
Errors cost time, trust and sometimes money.
How to use it
- List the actions where errors can happen.
- Separate slips from misunderstandings.
- Prevent errors, instead of only explaining them.
Example
If 6 of 200 transfers go to the wrong person, the error rate is 3%.