I would try to explain delayed decoupling between causal relationships but it's pretty clear that you and IwantRooseveltagain aren't even close to the math level to deal with that concept.
I'll explain your error and if you show understanding I'll do more.
Inflation, I = the factor between the new dollar amount and the previous dollar amount caused by expansion of the money supply.
If an apple costs 80 cents now and 2 cents in 1923 (assuming getting apples is no more difficult) then inflation = 80/2 = 40.
For inflation to go down to 1923 levels would mean that apples are once again 2 cents.
Rate = how fast something is changing with respect to something else. In most cases the implied other variable is time. The flow rate of a pipe is the change in fluid volume per unit time.
The inflation rate is how quickly inflation is changing with time, dI/dt.
If you are filling a bathtub and you turn down the faucet you are decreasing the flow rate, however as long as water is coming out of the faucet the flow rate is positive. The amount of water in the tub is still increasing. dWater/dt > 0. If it equaled zero that would mean the amount of water is not changing. If it was less than zero that would mean the amount of water is decreasing.
I gave you a link showing the rate of inflation. Since the rate was not less than zero (a negative number) at any point I know inflation has not decreased at any point.
All of your statements to the effect of "inflation is reducing" are false, and you don't even seem to be aware of it despite the very direct clue Greyparrot gave.
You might try to claim that you meant "inflation rate" but even if you did (which I doubt) that would destroy your original claim that inflation cannot be caused by debt.
Debt is always increasing and so is inflation. Is the rate of debt increase proportional to the rate of inflation increase? If debt causes inflation they must be on average but not over any specific period.
What you have claimed is that car speed can't cause wind in your face because acceleration is going down. Yet acceleration can be zero, and if your current speed is 80 kph there will be wind and it will be caused by your constant velocity.