Year-on-year comparison and period-over-period comparison

Compared with the previous year's data, it is called "year-on-year comparison", and compared with the previous month's data, it is called "period-over-period comparison"

The formula is as follows:
1. Year-on-year growth rate calculation formula
(Current Year Value-previous year value)/previous year value x100 = growth rate %
2. Inverse Calculation: a) if the current year value is known, and the same-year growth rate are two parameters, what is the previous year value?
Current year value/(1 + Growth Rate %) = previous year value
3. Inverse Calculation: B) Calculate the current year's value based on the known values of the previous year and the same-year growth rate?
Last year x (1 + Growth Rate %) = Current Year Value

And so on.