Original price was: $99.00.Current price is: $28.00.

If you start with “bad” data — if your data contains duplicate records for example — you’re inevitably going to end up with “bad” conclusions. You might end up double counting revenue, for example, which could have disastrous consequences for your business down the line.

Ben Collins - Data Cleaning and Pivot Tables in Google Sheets
Ben Collins – Data Cleaning and Pivot Tables in Google Sheets