all you have to do is pull an invoice or receipt from January 2021 and request a quote for the same products/services as now.
Or if you run quickbooks you can just pull the data.
hell you can go on instacart and look up an order from 2020 and then hit the re-order all items tab and do the arithmetic to get the %increase
This admin has been lying right to your face and telling you not to believe your own eyes and wallets for 3 years.
They hate you. Period.