What does "rose 2.27% on the month" mean?
Solution 1:
Consider this, from the UK Telegraph, May 15, 2020:
Sales dived by more than 16pc on the month in April, the steepest fall since monthly records began more than half a century ago, and came on top of the 8pc drop in March.
https://www.telegraph.co.uk/business/2020/05/15/us-retail-sales-plunge-april/
The terminology “on the month” is used to refer to a percentage change from the previous month, in contrast to an annual rate or the percentage change from the same month in the previous year.