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Did my change work?

You changed something — sent payment reminders, moved suppliers, changed how invoices are handled. The numbers look better, but is it real or just a lucky few weeks? Give us the numbers from before and after, and we tell you in plain words.
The made-up data is invoice times for a pretend team, not a real client. Download the sample CSV, put your own before-and-after numbers in, and upload it. Your file stays on your device.
1. Your numbers, before and after
Two columns: the first is before the change, the second after.
BEFORE AND AFTER (CSV)
61 lines
Yes — the change made a real difference.
The average went from 9.3 to 6.8. A difference this big would happen by luck less than 1 time in 100.
AVERAGE BEFORE
9.26
AVERAGE AFTER
6.77
CHANGE
−26.8%
COULD IT BE LUCK?
Very unlikely
60 numbers before, 60 after.
How the two spread out
Each bar counts how many of your numbers fall there. Dark is before, green is after.
Before · average 9.3
1
15
After · average 6.8
1
15
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A demonstration using practice money. treasurywithwesi is not a bank, is not licensed to move money, and never asks for a bank password, PIN or card number. Institutions named in the product are not partners.